Hi!

I gotta say that this site is really great because it helped me a lot at my job. I'm mostly the one asking the questions rather than answering it.

Now I'd like to know what's your motivation to help others of whom you only know their nicknames?

Because contrary to other communities on the Internet, this site lacks things like a message board where you can talk about all things in life or a function for private messaging. And in my opinion these two things normally help in building kind of a "social" environment.
Also stackoverflow has probably lot's of users and is therefore not that tight-knitted.

Maybe you can share some your thoughts with me.