Thinking about a new plan of attack for the spam wars - education. Educate the masses to stop replying to the bloody stuff, and eventually it really would become unfeasable to run a spam business. Infact you could take this a few steps further, instead of making it illegal to send spam, why not make it illegal to reply to spam? Make a big song and dance about it in the media, scare the average Joe Schmo who is replying to the stuff in the first place, and you reach the same result - spam businesses will find it no longer makes any money.