I'm afraid this has to be learned the hard way.
Fred
From: Peter Jaros rjaros@shaysnet.com Reply-To: English Wikipedia wikien-l@Wikipedia.org Date: Tue, 10 Feb 2004 20:40:28 -0500 To: English Wikipedia wikien-l@Wikipedia.org Subject: Re: [WikiEN-l] Re: Known Trolls
If a person really is a troll, they should be treated differently than someone who has suffered from a lapse in tact. It should (may) be possible to reason with the latter; reasoning with the former is a complete waste of time.
In short, I think that off-Wikipedia evidence can be very useful to arbitrators in deciding how to work with a disputant.