I'm finding moderating more difficult since I moved over to this platform, and as such I'd like to suggest the following - which are all available on VB4 as standard or as free addons:
1. The ability to ban a user and trash all their posts, just from selecting one post.
2. Compatibility with stopforumspam akismet etc.
3. Block entire countries from accessing the site
4. Creating a thread in a moderators forum whenever a post is reported.
5. The ability to send warning messages from a generic / anonymous account
6. Global ignore -- put a user on ignore so nobody can see their posts except the actual poster
7. Miserable users group - crash or slow down the entire site for people put into this group.
8. Log IP addresses and use the database to check for matching users, other posts from the same IP etc.
9. The ability to boot someone from a topic.