The only time I've ever been banned is from TheAdminZone. This happened years ago. I was hiring volunteer moderators for a similar niche forum and was chatting with someone via PM. But - trying to send the URL didn't work (it was replaced with something like "not today"). So - I angrily posted a topic about it.
What I learned?
1. Don't post replies or topics when angry. It really does get you no where.
2. Join friendly and welcoming communities. It'a actually way nicer than being shutdown, told your stupid etc. This is one of the reasons I like ForumCoin so much.







