Ideally this should be self-policed by the forum users, but there is also a 'report post' function which notifies the mods. Before anyone does that, they should make sure they double check the rules first. We've always been fine with robust debate and some in context swearing, but full on personal abuse and endlessly sweary attacks are not on. That said, there's always some posters who just wind each other up and make the forum worse for everyone else. My first suggested port of call is the 'ignore poster' function, but if that fails to stop the spats disrupting the discussions, mods can force users to ignore each other. Running a forum is not easy and it's is categorically impossible to moderate it in a manner that satisfies everyone, so there has to be some give and take along the way, backed by supportive users!