well i did the same. posted once, politely, mentioned linux, five minutes later, IP ban, not even allowed to view the board, no email explaining it, nothing.
I have since signed up again, and the first thing i did was search their board and guess what? shitloads of people have mentioned linux! also, i posted a new topic there with a link to that bogus "Microsoft buys red hat" article, and one of the replies was a bit anti-Microsoft, i wonder if that guy got banned? because they didn't delete the post.
Maybe they are mellowing out. who knows.
They certainly live up to their name, the WIndows BS.