Die spammers die!

Stupid spammers seem to think that the comments section of my blog is an appropriate forum for their pointless spam.

I've turned on the "word identification" function which will force people to type out a word displayed in graphic form before posting a comment. If the spammers are bots, this should stop them. If they are people who have nothing better to do with their time than sully my blog, then we'll have to institute more serious measures.