In mailinglist.cypherpunks Bill Stewart writes:
I'd guess that the first complaint will either be ignored (because they're busy trying to get the service on line and scaled up to 500,000 people) or else get the account squashed without a second thought (because they're busy trying to get the service on line and scaled up to 500,000 people), but the first few spams that cause mass quantities of complaints will start to get people thinking.
Um, you don't read news.admin.net-abuse.misc, do you? The first few spams from worldnet have already happened, and from the reports I've seen on there, the response from worldnet's posthamster has been pretty much nonexistent. It apparently doesn't help that the 'postmaster' mailbox has a quota just like the other mailboxen on the system, so every time someone does spam from worldnet, half the complaint mail to postmaster bounces.