Comments Moderation and Auto-Spam

I recently turned on the Comments Moderation for Wormwoodiana, owing to the amount of auto-spam that started showing up in the comments (and I deleted them).  I will, of course, clear for posting any real comments, and they are welcome.  But meanwhile, I note that the spammers are attempting to be craftier.  Here's a comment from today that I rejected:

"I have been reading and looking for Karl Hanns Strobl, a dark prince of German horror and is amazing and disturbing how many blogs related to viagra online [link removed] are in the web. But anyways, thanks for sharing your inputs, they are really interesting. Have a nice day."

Sigh.