I learned that hammers can indeed be larger than midgets from Rakion.
I learned that playing for numbers rather than fun became easily boring from FlyFF. Which, I stopped playing for fun when my very close friend quit, and the only thing I had left to play for was leveling. forget. stuff. Damn. Bitching hoe. roostersucking mother loving bastard. Ah, good times.
I learned that 'fantasy life' MMOs can cause great drama from Mabinogi. There was a time I actually couldn't goto Tir Chonaill without stuff happening, infact while waiting at Ciar Dungeon entrance, I had to send my friend to get stuff for me because I didn't want to hear anything.
I learned that little kids in online games take things a little too serious.
I learned that WoW is boring within weeks.
I learned that games where you actually have to think are fun from Guild Wars.
I learned that I'm a crappy commander from the Command and Conquer series, but it's still pretty damn fun.