EFF whitepaper

I doubt that the participants in this discussion who are getting
so huffy about the EFF position are ready to tolerate a
situation where unknown third parties can arbitrarily block
any email they send or receive, without informing them,
regardless of content.

Think about how that maps to the present situation.


I can certainly understand how end users or senders would feel
  that way, and many ISP's need to start doing a much better job
  of communicating their policies to their customers -- that's
  certainly not restricted to e-mail. However, using the EFF's
  hard-won and extremely critical influence to restrict an ISP's
  ability to manage their own systems doesn't seem like a good
  long-term solution to that problem.