Grab hold of your sword and make a stand for what is right.
Block yourself with an insuitably timed blocking message. Threaten to leave for good if the issue is not resolved by the time you get back from whatever activity you claim to be doing.
Take offence to an off hand comment, block yourself indefinately, and then come back under the guise of a new, rather transparant sock.
Pick out the 'troublemaker', block him, and revert his edits. Regardless of whether other people object or whether this may be against the spirit of the site or not.
Make an emotive appeal for calm.
Get involve on whatever front you can, but do your best to appear non chalant whilst in reality you are burning up with rage.
Play with him, without having the self awareness to realise that you are giving him the upper hand every time you show emotion.
Revert and block.
Do something ultra techy, such as hide his comments from the recent changes log, and then revert and block him. Possibly delete the edit in question.
Write down how much you're sick of what this person is doing to the site. Somewhere prominent.
Revert and block, though make sure to leave a snide edit comment.
Absolute morons, the lot of them.
Well, for a start, I don't care much either way. I'm sure there are good and bad people in every circumstance.
Bring back the good old days, before people felt the need to make rules about everything and templates for everything.
Make it more specialist, like write about punk music and such.
Be even more abrasive about religion, we clearly don't do enough to criticise it.
Boot out the troublemakers, be more article focused, and generally be less like a social site and more like wikipedia.
More templates please.
I just wish people had more respect and used less foul language!