How many forum categories/subforums can vBulletin take?

[Bowromir]

Ok here is the idea;

We want to give our social groups the possibility to create a forum (SocialForums plugin). But besides that we want to also let the leader of the group create subforums in his or her forum.. Chances are that their will be several hundred, possibly thousands of groups who will use this feature and this will results in huge amount of forums and subforums. Now the big question;

1: How much does this impact our database?
2: Can vbulletin handle this?
3: if so, what kind of server would it take to handle this situation and can you give us any tips in how to handle this kind of traffic?

Thanks for any advice/input