diff --git a/html/inc/forum.inc b/html/inc/forum.inc
index a9cd807bf5..db7be99523 100644
--- a/html/inc/forum.inc
+++ b/html/inc/forum.inc
@@ -798,6 +798,7 @@ function post_rules() {
         <li> No abusive comments involving race, religion,
             nationality, gender, class or sexuality.
         <li> The posting privileges of violators may be suspended or revoked.
+        <li> If your account is suspended, don't create a new one.
         ").$project_rules."
         </ul>
     ";
diff --git a/html/ops/delete_spammers.php b/html/ops/delete_spammers.php
index d4e5a06431..18360b072d 100755
--- a/html/ops/delete_spammers.php
+++ b/html/ops/delete_spammers.php
@@ -83,7 +83,7 @@
 //   delete teams (and their owners) where the team
 //   - has 0 or 1 members
 //   - has no total credit
-//   - has description containing a link
+//   - has description containing a link, or a URL
 //   - is not a BOINC-Wide team
 //   and the owner
 //   - has no posts
@@ -299,9 +299,12 @@ function delete_teams() {
     foreach ($teams as $team) {
         $n = team_count_members($team->id);
         if ($n > 1) continue;
-        if (!has_link($team->description)) continue;
-        $user = BoincUser::lookup_id($team->userid);
-        if ($user) {
+        if (!has_link($team->description) && !$team->url) continue;
+        $users = BoincUser::enum("teamid = $team->id");
+        if (count($users)) {
+            $user = $users[0];
+            if ($user->seti_nresults) continue;
+                // for SETI@home
             $n = BoincPost::count("user=$user->id");
             if ($n) continue;
             $n = BoincHost::count("userid=$user->id");
diff --git a/html/user/team_display.php b/html/user/team_display.php
index 2ea89edd69..1190da4f0a 100644
--- a/html/user/team_display.php
+++ b/html/user/team_display.php
@@ -27,6 +27,9 @@ check_get_args(array("teamid"));
 
 $teamid = get_int("teamid");
 $team = BoincTeam::lookup_id($teamid);
+if (!$team) {
+    error_page("no such team");
+}
 
 $get_from_db = false;