Spolsky on Comments
Joel Spolsky agrees that comments, especially anonymous comments, are bad for blogs.
When a blog allows comments right below the writer's post, what you get is a bunch of interesting ideas, carefully constructed, followed by a long spew of noise, filth, and anonymous rubbish that nobody ... nobody ... would say out loud if they had to take ownership of their words. Look at this innocent post on a real estate blog. By comment #6 you're already seeing complete noise. By #13 you have someone cursing and saying "go kill yourself." On a real estate blog. #18 and #23 have launched into a middle eastern nuclear conflageration which continues for 100 posts.