There are a ton of ways to stop spam on blogs. This is my dirty (and not pretty) solution that I am adding to stop the recent wave of crap that is getting through the front end checks.
The long term plan is to put a back-end on this but for now here is v.00001
Sorry deadbeat, I don't allow comment spam. If you feel you were wrongly blacklistedContact Me
n.b. If you are on BlogCFC then this is for addcomment.cfm