UPDATE: Due a barrage of incoming “trackback” spam I have enabled moderation for comments from first time authors. This allows me to mark them as spam before they get added to my ‘recent comments’ list. If the number of them decreases (now a few a day are coming in for moderation, which I instantly mark as spam) I’ll go back to completely unmoderated.
I welcome all comments, and generally allow unmoderated commentary. Mean spirited comments with no value may be deleted. Trolls — mean spirited commentary from people who do not give their proper e-mail address and name — will be deleted immediately. Anonymous comments that are meant to contribute to the discussion are allowed.
I’ve also run into a problem with long, repetitive comments that stifle real discussion. Repetitive or overly long diatribes will be deleted, and the author put into a moderation list. Please try to keep comments relatively brief and to the point. Ideological rants that add nothing new may also be deleted.
I do have a good spam filter (thanks, WordPress!), but will also delete comments that seem focused solely on solicitation.