What do people do about comment SPAM?

Regretfully, this this site gets so much comment spam, I don’t think I can allow comments anymore.  The occasional great comments and discussions I was hoping to get are drowned out in a flood of spam.

None of it ever gets posted on the site, so you think people would give up… but it is so tedious to go through and delete all this junk!  Some great comments are interspersed and I’d love to be able to post them and get a discussion going, but I just don’t have the hours it takes to week through the junk.  Any ideas?

Comment SPAM