Honestly, I'd pay for a 'Master Foo' custom title. :P

And more on topic, I'd say that the spam bots aren't really a problem. They don't really post all that frequently, and when they do it's never long before an admin catches it.

If, however, we want to get rid of them more permanently, I'd agree with Overlord that a custom algorithm is the only real way to go.

Also, Dermo, there's really no need to criticize c00ba for what he said. I don't really see anything offensive about it to be honest.