I got banned from 2moons a long while ago, me and a GM were good buddies, and we did some dickery with his powers. He got stripped of his status, I got banned, but the servers all closed not long after, so oh well.
Got banned from FlyFF too, I was fighting a bunch of... some weird mob, it's FlyFF, to get my last part of a new endgame armor they added. I got stopped by a GM, they said that I was exploiting a glitch in the game. Apparently what I was fighting, their drop chance for the armor was far higher than intended, and that's all they were talking about in the main town. I hadn't been there, I spawned in the wild where I was a few night before which was the last time I played, they never posted an announcement into chat, and I never even got the damn item anyway. Still, banned. Fuck them.
Also, never play LoL with anyone other than a group of friends, most people I met are assholes on there. I got banned for a few days for playing good. Not for being too good to be real, like some of you and CS:S, though I was the best on my team. Just for playing my Siver. I pushed center like a boss, got down an inhibitor before I died my first death at level 13, while the other players were ~10. But, EVERYONE on my team kept bitching cause I didn't build the way they wanted. I was running a +Mana, -cooldown build, and wiped entire waves with her boomerang, which I could keep reusing, but they didn't like that I didn't play a standard Siver, and didn't ONLY last hit at the start(I still did, but they were under the impression that you were only supossed to swing a single time at any mob ever, not to help wear them down at all.) Everyone on my team complained and reported me (despite us winning cause they rushed though the hole I made), so I got banned for a few days. I refuse to play anymore unless it's with my good friends.