Violations
So, what will get you banned? Well, any attacks on the code or server for starters. That's pretty much automatic.
Many games have a three strike rule. We don't. Someone doesn't need three strikes to be asked to leave depending on circumstances. Staff will always try to be fair and we have no intention of being arbitrary but sometimes there are just patterns of behavior that don't quite cross the line yet are still unacceptable. Sometimes they don't come to our attention immediately. Sometimes only one person has complained but once we start looking into it, we learn it's a regular thing. Sometimes something has not only crossed the line, but you can't even see the line any more. In such a case, one official strike is enough.
How do you not get banned? Act like a civilized adult, as if the game were your living room, and everyone else on it were your invited guests. Don't abuse or harass anyone. Be kind, considerate, civil, or, if all else fails, just avoid them.