I have noticed some more comments on moderation at various sites. I will load them as individual comments below. Some interesting issues relating to moderation come out.
JeffID at The Air Vent is finding that he has to censor TCO, a character who has been banned at numerous other sites. The sorts of problems TCO (and his ilk) can create are illustrated in the Climate Audit Banned at Sudbury Airport thread, where it emerged that cuss words used by TCO that were missed by the moderator may have triggered a nanny program banning the site.
Some commentators remark about the different policies adopted on moderation at different blogs. RC in particular simply deletes, or more accurately, fails to approve posts that it wants to reject, without advising the poster. Other sites, like CA and WUWT, allow the post through, but snip the offending part of the post, and explain why. Clearly this is a much more generous approach than the RC approach.
Moderation policies do affect the tone and quality of comments on blogs. As a poster below remarks. “There is simply no comparison between the level of civility and of substantive comment here on Climate Audit and that on Real Climate.”