Spam blacklists and E2E
On Declan McCullagh's Politech, Brad Templeton's reply to a Draconian anti-spamming proposal.
Quote midway through Mr. Templeton's response:
Do we believe in the end to end principle? Under the E2E principle, the ISP's job is to provide an efficient bit pipe, not to pass judgement and restrictions on the nature of the traffic flowing over it. (emphasis mine)