Like I said, actually not very much. It's just that the CBR forums are moderated by a bunch of utter incompetent retards, who are completely fine with people being totally toxic shitholes to each other as long as they talk about comic book characters but OH NO YOU SAID SOMETHING UNTOWARD TO ANOTHER MEMBER! PERMABAN!!!
And the comment about which I presume I got banned was not really not even personal. I just said that some guy was strawmanning fans of Kitty Pryde, because that was what he was doing. I didn't swear, I didn't get personal, just calling out a strawman.
It's possible it could be instead because I was very unhappy with the latest from the current writer of X-Men Gold, Mark Guggenheim. But calling someone a bad writer for shitty writing is also not a personal attack, but a pointed critique of their style.

Also, I was far from alone in that regard, although not for the same reasons as the others.