diff --git a/src/forum.nim b/src/forum.nim
index 24606a1..4dafeca 100644
--- a/src/forum.nim
+++ b/src/forum.nim
@@ -888,20 +888,26 @@ template createTFD() =
 #[ DB functions. TODO: Move to another module? ]#
 
 proc selectUser(userRow: seq[string], avatarSize: int=80): User =
-  return User(
+  result = User(
     name: userRow[0],
     avatarUrl: userRow[1].getGravatarUrl(avatarSize),
     lastOnline: userRow[2].parseInt,
-    rank: parseEnum[Rank](userRow[3])
+    rank: parseEnum[Rank](userRow[3]),
+    isDeleted: userRow[4] == "1"
   )
 
+  # Don't give data about a deleted user.
+  if result.isDeleted:
+    result.name = "DeletedUser"
+    result.avatarUrl = getGravatarUrl(result.name & userRow[1], avatarSize)
+
 proc selectPost(postRow: seq[string], skippedPosts: seq[int],
                 replyingTo: Option[PostLink], history: seq[PostInfo],
                 likes: seq[User]): Post =
   return Post(
     id: postRow[0].parseInt,
     replyingTo: replyingTo,
-    author: selectUser(@[postRow[5], postRow[6], postRow[7], postRow[8]]),
+    author: selectUser(postRow[5..9]),
     likes: likes,
     seen: false, # TODO:
     history: history,
@@ -918,6 +924,7 @@ proc selectReplyingTo(replyingTo: string): Option[PostLink] =
   const replyingToQuery = sql"""
     select p.id, strftime('%s', p.creation), p.thread,
            u.name, u.email, strftime('%s', u.lastOnline), u.status,
+           u.isDeleted,
            t.name
     from post p, person u, thread t
     where p.thread = t.id and p.author = u.id and p.id = ? and p.isDeleted = 0;
@@ -931,7 +938,7 @@ proc selectReplyingTo(replyingTo: string): Option[PostLink] =
     topic: row[^1],
     threadId: row[2].parseInt(),
     postId: row[0].parseInt(),
-    author: some(selectUser(@[row[3], row[4], row[5], row[6]]))
+    author: some(selectUser(row[3..7]))
   ))
 
 proc selectHistory(postId: int): seq[PostInfo] =
@@ -950,7 +957,8 @@ proc selectHistory(postId: int): seq[PostInfo] =
 
 proc selectLikes(postId: int): seq[User] =
   const likeQuery = sql"""
-    select u.name, u.email, strftime('%s', u.lastOnline), u.status
+    select u.name, u.email, strftime('%s', u.lastOnline), u.status,
+           u.isDeleted
     from like h, person u
     where h.post = ? and h.author = u.id
     order by h.creation asc;
@@ -963,7 +971,7 @@ proc selectLikes(postId: int): seq[User] =
 proc selectThreadAuthor(threadId: int): User =
   const authorQuery =
     sql"""
-      select name, email, strftime('%s', lastOnline), status
+      select name, email, strftime('%s', lastOnline), status, isDeleted
       from person where id in (
         select author from post
         where thread = ?
@@ -981,7 +989,8 @@ proc selectThread(threadRow: seq[string]): Thread =
           order by creation asc limit 1;"""
   const usersListQuery =
     sql"""
-      select name, email, strftime('%s', lastOnline), status, count(*)
+      select name, email, strftime('%s', lastOnline), status, u.isDeleted,
+             count(*)
       from person u, post p where p.author = u.id and p.thread = ?
       group by name order by count(*) desc limit 5;
     """
@@ -1142,7 +1151,7 @@ proc executeLogin(c: TForumData, username, password: string): string =
   const query =
     sql"""
       select id, name, password, email, salt
-      from person where name = ? or email = ?
+      from person where (name = ? or email = ?) and isDeleted = 0
     """
   if username.len == 0:
     raise newForumError("Username cannot be empty", @["username"])
@@ -1280,6 +1289,8 @@ proc executeDeleteUser(c: TForumData, username: string) =
   # Set the `isDeleted` flag.
   exec(db, sql"update person set isDeleted = 1 where name = ?;", username)
 
+  logout(c)
+
 proc updateProfile(
   c: TForumData, username, email: string, rank: Rank
 ) {.async.} =
@@ -1367,7 +1378,8 @@ routes:
       sql(
         """select p.id, p.content, strftime('%s', p.creation), p.author,
                   p.replyingTo,
-                  u.name, u.email, strftime('%s', u.lastOnline), u.status
+                  u.name, u.email, strftime('%s', u.lastOnline), u.status,
+                  u.isDeleted
            from post p, person u
            where u.id = p.author and p.thread = ? and p.isDeleted = 0
            order by p.id"""
@@ -1410,7 +1422,8 @@ routes:
     let postsQuery = sql("""
       select p.id, p.content, strftime('%s', p.creation), p.author,
              p.replyingTo,
-             u.name, u.email, strftime('%s', u.lastOnline), u.status
+             u.name, u.email, strftime('%s', u.lastOnline), u.status,
+             u.isDeleted
       from post p, person u
       where u.id = p.author and p.id in ($#)
       order by p.id;
@@ -1477,10 +1490,10 @@ routes:
     """ % postsFrom)
 
     let userQuery = sql("""
-      select name, email, strftime('%s', lastOnline), status,
+      select name, email, strftime('%s', lastOnline), status, isDeleted,
              strftime('%s', creation), id
       from person
-      where name = ?
+      where name = ? and isDeleted = 0
     """)
 
     var profile = Profile(
@@ -1491,8 +1504,11 @@ routes:
     let userRow = db.getRow(userQuery, username)
 
     let userID = userRow[^1]
+    if userID.len == 0:
+      halt()
+
     profile.user = selectUser(userRow, avatarSize=200)
-    profile.joinTime = userRow[4].parseInt()
+    profile.joinTime = userRow[^2].parseInt()
     profile.postCount =
       getValue(db, sql("select count(*) " & postsFrom), username).parseInt()
     profile.threadCount =
diff --git a/src/frontend/editbox.nim b/src/frontend/editbox.nim
index e6c6c62..c05c03d 100644
--- a/src/frontend/editbox.nim
+++ b/src/frontend/editbox.nim
@@ -59,7 +59,7 @@ when defined(js):
 
   proc render*(state: EditBox, post: Post): VNode =
     if state.status != Http200:
-      return renderError("Couldn't retrieve raw post")
+      return renderError("Couldn't retrieve raw post", state.status)
 
     if state.rawContent.isNone() or state.post.id != post.id:
       state.post = post
diff --git a/src/frontend/error.nim b/src/frontend/error.nim
index 6a68df4..a70708d 100644
--- a/src/frontend/error.nim
+++ b/src/frontend/error.nim
@@ -1,4 +1,4 @@
-import options
+import options, httpcore
 type
   PostError* = object
     errorFields*: seq[string] ## IDs of the fields with an error.
@@ -11,7 +11,25 @@ when defined(js):
 
   import karaxutils
 
-  proc renderError*(message: string): VNode =
+  proc render404*(): VNode =
+    result = buildHtml():
+      tdiv(class="empty error"):
+        tdiv(class="empty icon"):
+          italic(class="fas fa-bug fa-5x")
+        p(class="empty-title h5"):
+          text "404 Not Found"
+        p(class="empty-subtitle"):
+          text "Cannot find what you are looking for, it might have been " &
+               "deleted. Sorry!"
+        tdiv(class="empty-action"):
+          a(href="/", onClick=anchorCB):
+            button(class="btn btn-primary"):
+              text "Go back home"
+
+  proc renderError*(message: string, status: HttpCode): VNode =
+    if status == Http404:
+      return render404()
+
     result = buildHtml():
       tdiv(class="empty error"):
         tdiv(class="empty icon"):
@@ -61,19 +79,4 @@ when defined(js):
         state.error = some(PostError(
           errorFields: @[],
           message: "Unknown error occurred."
-        ))
-
-  proc render404*(): VNode =
-    result = buildHtml():
-      tdiv(class="empty error"):
-        tdiv(class="empty icon"):
-          italic(class="fas fa-bug fa-5x")
-        p(class="empty-title h5"):
-          text "404 Not Found"
-        p(class="empty-subtitle"):
-          text "Cannot find what you are looking for, it might have been " &
-               "deleted. Sorry!"
-        tdiv(class="empty-action"):
-          a(href="/", onClick=anchorCB):
-            button(class="btn btn-primary"):
-              text "Go back home"
\ No newline at end of file
+        ))
\ No newline at end of file
diff --git a/src/frontend/forum.nim b/src/frontend/forum.nim
index 1ae644e..031590b 100644
--- a/src/frontend/forum.nim
+++ b/src/frontend/forum.nim
@@ -1,4 +1,4 @@
-import strformat, times, options, json, tables, sugar
+import strformat, times, options, json, tables, sugar, httpcore
 from dom import window, Location
 
 include karax/prelude
@@ -46,7 +46,7 @@ proc route(routes: openarray[Route]): VNode =
     if matched:
       return route.p(params)
 
-  return renderError("Unmatched route: " & path)
+  return renderError("Unmatched route: " & path, Http500)
 
 proc render(): VNode =
   result = buildHtml(tdiv()):
diff --git a/src/frontend/postlist.nim b/src/frontend/postlist.nim
index 68f2e85..94be2d2 100644
--- a/src/frontend/postlist.nim
+++ b/src/frontend/postlist.nim
@@ -308,7 +308,7 @@ when defined(js):
   proc renderPostList*(threadId: int, postId: Option[int],
                        currentUser: Option[User]): VNode =
     if state.status != Http200:
-      return renderError("Couldn't retrieve posts.")
+      return renderError("Couldn't retrieve posts.", state.status)
 
     if state.list.isNone or state.list.get().thread.id != threadId:
       var params = @[("id", $threadId)]
diff --git a/src/frontend/profile.nim b/src/frontend/profile.nim
index 56e0d43..e26a56d 100644
--- a/src/frontend/profile.nim
+++ b/src/frontend/profile.nim
@@ -58,7 +58,7 @@ when defined(js):
     currentUser: Option[User]
   ): VNode =
     if state.status != Http200:
-      return renderError("Couldn't retrieve profile.")
+      return renderError("Couldn't retrieve profile.", state.status)
 
     if state.profile.isNone or state.profile.get().user.name != username:
       let uri = makeUri("profile.json", ("username", username))
diff --git a/src/frontend/threadlist.nim b/src/frontend/threadlist.nim
index 68391ff..e8b252b 100644
--- a/src/frontend/threadlist.nim
+++ b/src/frontend/threadlist.nim
@@ -161,7 +161,7 @@ when defined(js):
 
   proc genThreadList(currentUser: Option[User]): VNode =
     if state.status != Http200:
-      return renderError("Couldn't retrieve threads.")
+      return renderError("Couldn't retrieve threads.", state.status)
 
     if state.list.isNone:
       if not state.loading:
diff --git a/src/frontend/user.nim b/src/frontend/user.nim
index 4b2d212..c43288d 100644
--- a/src/frontend/user.nim
+++ b/src/frontend/user.nim
@@ -20,6 +20,7 @@ type
     avatarUrl*: string
     lastOnline*: int64
     rank*: Rank
+    isDeleted*: bool
 
 proc isOnline*(user: User): bool =
   return getTime().toUnix() - user.lastOnline < (60*5)