But an equally valid interpretation of what's going on is:
Cool, free cupcakes! They want you to pay for birthday cakes and pre-order wedding cakes, but they'll give you any cupcake you ask for if they've got one available!
Do the IRC transcripts sound like he thought that this information should have been shared by the server? Your interpretation would have weev thinking that AT&T intended to make this information public, that having it public was fine, and there was no complexity in what he did to get it.
You're right - weev was being a dick, and he knew he ws at the time.
BUT…
I personally think AT&T should also be held to account for their part in what happened. They put all that data up on the public internet, with no authentication required to get it. I think they're at least as culpable here as weev is. (and I don't think _either_ of them should get off scott free - they both played fast and loose with other people's data.)