Besides all the above points, most of us know that it is usually a member posting as a Guest that causes the nastiness. Also, it is so easy to get additional e mail addresses that one person could be 5 or 6 different members. One through the regular ISP, one on hotmail, one on aol, etc. that there really is no point in a members only policy. Let's just be grown ups, and deal with it.
(And Bandersnatch, just look out, will ya? No snatching banders on the Mudcat!)

OK, this is submit number who knows, I hope they don't all show up. I have had a devil of a time submitting posts all day..........