Topic: Group Promoting
This would be good if you have some sections you only want members that post to see. Exactly like the ranks, where a user gets put up a rank everytime they reach a certain post, but also add one for the groups.
New Member - 0 posts
Member - 10
Active Member - 50
You might say this is exactly the same as ranks, but you have some forums that only appear as you work your way up in the user groups.