SO had turned me into a better developer by far, I like to browse questions that strike my interest and curiosity and just read through the answers. I never fail to learn something new everyday, whether it's something trivial or something much more complex.
When I receive reputation it means a lot to me, almost a self achievement of sorts. Something I can show to someone to prove my "worth". I think it works for me as a great confidence booster, also its something I can show my friends who don't understand what I do.
It almost feels like I can finally have something to back me up if need to be.
So the question is what does YOUR reputation mean to YOU? Is it simply a number, is it a score as if you're playing a game, or does it help you mentally achieve your goals and improve yourself like it does for me.