i'd written:
well, be careful with your acl's, because if you accidently disrupt nonabusive traffic as a side effect of protecting your network from abuse, you'll shortly be hearing complaints from EFF about how you've disenfranchised said nonabusers.
someone answered:
You've got to be kidding me.
no i am not. in http://www.eff.org/effector/HTML/effect14.31.html#II we see: | The focus of efforts to stop spam should include protecting end users and | should not only consider stopping spammers at all costs. Specifically, any | measure for stopping spam must ensure that all non-spam messages reach | their intended recipients. Proposed solutions that do not fulfill these | minimal goals are themselves a form of Internet abuse and are a direct | assault on the health, growth, openness and liberty of the Internet. | Email is protected speech. There is a fundamental free speech right to be | able to send and receive messages, regardless of medium. Unless that right | is being abused by a particular individual, that individual must not be | restricted. It is unacceptable, then, for anti-spam policies to limit | legitimate rights to send or receive email. To the extent that an anti-spam | proposal, whether legal or technical, results in such casualties, that | proposal is unacceptable. i never thought i'd feel a need to lecture shari or john on the nature of the protection in "protected speech", so, i have not even tried.