Once. It was several years ago, I was an idiotic kid who didn't know what the real world was like. Fun fact, I used "lol I was trolling" as a scape-goat for everything, because I was honestly naive about the forums and just kept posting stuffty threads until I finally snapped on a drama about me.
tl;dr banned for trolling years ago.
At the very least, I've learned from my mistakes and matured, at least a little.