A reader just sent a message to my email that the Comments box on the blog is not working. She says that when she tries to post using Comments she is asked for her "profile" (?) and that when she tries to respond to the options they are all declared invalid. I'll have to report this and hope it's fixed soon.
Meanwhile, contest entries can still go to my email site at email@example.com
So sorry about this! I can't imagine what's gone wrong.