in reply to Simple Anti-Spam Encoder
This is a good idea. The problem is that if many sites adopt this encoding, which cannot be a one-way function, most spammers will adopt a decoding.
I have tried to address the SPAM issue with my Spider Catcher which feeds bogus emails through a faked self-referring webpage.
Can we fight spam with spam? How about some method to swamp the spam server with request-remove attempts?