I have enabled TypeKey authentication to stop the comment spam that was driving me crazy. I received over 2,000 spams from two different IP addresses (a trace showed them to be from Ukraine) in the past two days.
This change will hopefully be temporary. I don't want to discourage anyone from commenting, and I don't particularly care if you use a real name and email address.
If you posted a comment in the past couple of days and it doesn't show up, it may have been caught in my "junk filter." Please let me know and I'll try to fish it out.