Looks like I can't reply to this old thread: https://forum.craftymynes.com/3815-what-is-ip-ban/0
so I'll start a new one...

Quote: "My advice is follow all the rules, don't make huge waves, play nice and you should never experience an IP ban."

Nope. Any Internet community - game server, message board, whatever - involves admins.
There is always the chance that one or more of the admins is a complete prick.
You could be breaking a rule that you didn't know existed, you could be doing something that *looks* like a violation to them but isn't, they might be having a bad day, they might have gotten their layoff notice and are out for blood one last time, etc. Unfair bans are a dime a dozen, and their next victim is right around the corner. Maybe you.

The only way to completely avoid the chance of being banned, is to play offline games.