Dogette has posted some technical information about how comments are handled behind the scenes on her site, Two Nervous Dogs.
1. Your comment first goes into TND’s Moderation Hell, where it is examined by a non-human. It is not “read.” It is “examined” for hatefulness and grammar by a very small yet powerful application using sophisticated logarithms, essentially a series of “if-then” statements. Example: “If” asshole, “then” fuck off.
There is much, much more to read. Way beyond my mad bloggy skillz. She's my hero.