There have been enough battles on here, believe me. It has got a lot better since two women from the west coast were perma banned!
Yep, sometimes perma-banning is necessary, even in an environment with as much latitude as this one.
It's a tenuous balance. I've seen where other forums, in the spirit of less-is-more moderating style, have allowed their communities to deteriorate because they're loathe to boot obvious disruptors whose only purpose is to be destructive. It's a tough call sometimes.