I have to disagree with Lance here.
No one can send any `bomb' through mere text, and to compare harassing mail (which is definitely not to be condoned) to it is to expose your naive and self-serving view of the matter.
I know people who would probably rather receive an explosive in the mail than receive email from certain individuals, or about certain subjects. Physical damage can be easier to heal. Your requirements are not everyone's. Although I believe myself that encryption and anonymity go hand-in-hand, I can understand that some members of the community Mr. Wells serves might not quite agree with me. As long as he makes the fact that he audits posts absolutely clear, beforehand, to his users, I have no problem with what he does. I am free to find a remailer operator with less restrictive policies, and will do so. Cypherpunks have been talking about a free market where users choose the anonymity services they like best. I see no reason to berate Mr. Wells about his policies. Make sure he discloses his policies, and let the users vote with their packets. Enforcing a standard, any standard, is a Very Bad Thing. Marc