I wouldn't say they're "host-ile" by any means, or that they ban people left and right. Obviously, you did something to get yourself banned. Just make sure not to do it here.
I've run across a few 'alerts' since I've been back doing the forum thing (a couple months), basically, reminders, saying
Nothing wrong there... In my 14 (eek) year run there, I've probably been banned (once), for disagreeing with someone @ corporate and not keeping my mouth shut. My own fault there. Other than that, it's pretty simple... Follow the rules, and you're fine