mollom

As things on the internet go, not many are worse than spammers. At best they're nuisance, at worst the hardware, cycles and power wasted on dealing with them is causing global warming and pollution at an ever accelerating rate.

I'm most annoyed by the wasted cycles. When I run a web site, I'd like to use the CPU power I pay for to be used to serve (admittedly mediocre) content to people that might get some (questionable) value out of them.