Spam on any communication system is like the analogue hole in media. It'll always be there unless drastic and constraining measures are taken.

However, when it comes to email, spam barely concerns me these days. Quite simply, I use GMail and they get a very, very high percentage of it out of my sight.

Before GMail I had a locally installed bayesian filtering system that was similarly successful.

I still think a grammar checker would be a brilliant tool against spam and it woud have the added benefit of encouraging real people to write properly so that their emails get through.

When was the last time you saw any spam with good grammar?