As a beginner who has experiences of vBulletin forums, I have some questions:
1) what is difference between a forum and stackexchange?
2) How can I recognize moderators?
3) is there any PM system?
4) are downvoters unknown (and don't have to explain)?
5) do moderators see deleted posts?
6) do they know downvoters?
7) why answers are not sorted? How can one sort it?
8) is there any sort of signature? (like vBulletin/MyBB/..)
9) Can the system recognize one single user with mutiple IDs? Deos it violate rules?
10) Ask Once - Answer Once? How about discussions?
11) Is there any personal blog for a user? (like codecall.net)