> Denial of service attacks (flooding a mailbox with junk) will be easier after this document becomes a standard, since more systems will support the same set of mailbox names.
I've managed a number of RFC 2142 mailboxes and while they all got spam (the dumb spammers would even send to abuse@!) it wasn't any worse than the other published email addresses on those systems and the volume was spam was still less than what our typical user would see (since nobody using postmaster@ used it to sign up for everything under the sun).
The spam we got was often useful for abuse handling and spam filtering too. It was a good thing!
Every network should have an abuse@ address. Web forms are pretty popular these days too, but every extra hoop you force reporters to jump through can cut down on the reports you get of problems on your network. It's worth dealing with the spam to make sure you're getting notified as quickly as possible.
> Denial of service attacks (flooding a mailbox with junk) will be easier after this document becomes a standard, since more systems will support the same set of mailbox names.