Just a head's up to SM, JA etal. - check out the comments below Fred Kaplan's excellent blog about the Sonny Rollins concert - they are all filled with SPAM. I don't know if there is a way for you to prevent this happening but until you do manage to find a way it's very annoying and quite a big turnoff, seriously devaluing the worth of both the blogs and the comments. Check it out:

SPAM filled comments