Good points. I think you could eventually solve trust with good behavior, transparency, and involvement of good people. On the black hole thing, is there any

Good points. I think you could eventually solve trust with good behavior, transparency, and involvement of good people. On the black hole thing, is there any laws like CANSPAM that compel them to prove they're doing the right thing? What about testing them by buying lists anonymously and seeing if people are really opted out? This could also be used to generate press and goodwill by sharing who the worst offenders are.