Spam Attack

I don't know if anyone has noticed this, but our comments section has been under attack for about a day now. An anonymous commenter - a bot, I suspect - has been putting generic comments on our site, like "great site, keep up the good work," and then leaving a link to a gambling site. We were flooded with about 50 comments in the past 24 hours. To defend against this, we've (temporarily) restricted commenters to those with a Blogger account.

We hope this does not present an inconvenience to our other commenters who are not registered, and we will work to put some defense in against random spam attack. Thank you for your patience.

Update:I've noticed that, in addition to spam, our comments have dried up as well. I'm lowering the restriction to see if that's made any difference.