You run a forum - a small, but to you precious, one - which was set up to be "a bastion of free speech (of sorts)". Its members came from another forum you administer, where certain discussions - both political and religious - were banned because they weren't relevant to the site.
Great! But there's trouble in paradise. Recently, one of the members has taken it upon themself to be completely and totally destructive. They're offensive and hateful, despite there being no valid reason for it.
But if you ban them, you're breaking your original agreement and the site's founding principles. You suspect they might be causing the trouble to see if they will be banned.
Your site software can either prevent them from commenting or not - there isn't a "limit" or "make invisible" setting. You're troubled: do you stick by the founding principles when someone tests them in the worst possible way? Or is there some other solution?
What do you do?
