The question has been closed for the following reason "Duplicate Question" by tsilb Jun 06 '10 at 16:57
Yes it is very addictive, I've been learning a lot and love answering the questions.
answered Jun 06 '10 at 16:56
I think is helpful, not necessarily right now but it's growing and I hope it will become more popular then google!
answered Jun 06 '10 at 16:59