I've had a couple of people tell me they were unable to post comments. After taking this up with Typepad, I have shifted from their "Typepad connect" system back to the vanilla commenting system. If you have problems posting a comment, then I would appreciate an email at last name dot firstname (gmail). And you can rest assured it isn't personal unless you are a spambot, in which case it is, or would be if you were a person.
Also, in a recent post I suggested that there was a conflict of interest in a paper I read. The authors have now published an explanation at the end of the paper and I retract the suggestion (I still don't understand why lead author Gilad Lotan lists his affiliation as he does, but that's his personal decision). I've put a note in the post to clarify.