I can make nice sigs thanks to KMC (my current not included) which extends itself to various artsy endeavors in real life. It also fostered my love of comics, which gives me more exciting stuff to read.
I'm also indebted to the religion forum for giving me people to debate against, which has helped me articulate my thoughts much better. And like-minded individuals (or opposite-minded occasionally) who have helped me understand my own opinions and beliefs.
Also various friends, though only a few with any real impact.
...
So good times.