Searched and didn't see any reference to this.

Today I got slammed with a new type of spam... optimalsearch.net is spamming my referring searches list... a1.optimalsearch.net, sw2.optimalsearch.net, etc. Is this a totally new type of spam??? Because as far as I can tell there's no way to deal with it except to manually delete every single hit.

Is there a way to delete them all? Is there a way to add that to the antispam block list and have that affect referring searches?

I don't want to nhave to manually delete 746 hits. :(