I liked your last comment Adel about kicking ass... I agree!
I would change the way the interface looks...lots of wasted space I think.
1)Bring more users.2)Bring celebrities (like Yahoo! Answers)3)Avatar? (Another Yahoo thing)4)Offer categories AND tags.5)An Arabic interface.6)Polls & questionnaires.7)Fix your technical bugs (Yes you do have bugs).to be the ultimate learning source?! Always have the attitude to kick the ass of Yahoo! Answer.