user can change her or him title as he want to change like facebook whats on your mind?

then its show under the user name
what you think about this mem
it is already added?

This is more like a social network site, not a cms :S Anyway maybe one day someone will do it

mmmm yea but this feature already using some cms's vbulleting using this feature

and also how about giving thread ranks user can rate a forum threads and give reputation for user

and user can report threads or posts

Eg: