There seems to be a problem with your AntiSplog API server. Both my sites cannot connect. I have tried re-registering my API key but get the following message:
There was a problem connecting to the API server. Please try again later.
I also had a crazy spammer who must have created about fifty blogs in the space of ten minutes. I have the limit for new blog sign-ups set at two. I had to eventually block his IP address via htaccess.