I think Brian is being respectful and leading by example; its just that most anonomous accounts tend to broach very thorny subjects in a very provocative manner.
There are some who posters who are anonomous and yet DO NOT antagonise people with provocative posts....Hell, there are hundreds if not thousands of 'voyers' who just read and never post.
The majority of anonomous posters, do so with a very negative twist (as per the document Brian attatched). It does bring out the negative/bitchy/antagonistic side of peoples characters.

Although it would be a longer drawn out process to set up a psudo account with facebook account verification, some people have an insatible thirst for provocation.
- Verify via gym/regional representative
- Verify via facebook/e-mail/IP address
- Flag up suspitious activity
- Three-strikes and your out policy
- Zero tolerance policy

Alternatively, thinking radically, the more rules which are in place make this a more onorous task for the moderators (getting too involved and having to micro-manage). So it could be a bigger threat to have accounts stamped out immediately, with no recourse, no discussion and a blanket ban put on that IP address. This could then be symbolised with a big skull and cross-bones next to that forum name, deleting ALL their posts and highlighting the IP Address it was posted from. (The threat of being deleted could serve as a deterent). Better than a 'name-and-shame' and if its that much of an issue people can make their own enquiries to the IP location. Sure, this may be different for mobile phones, but this may just be a small percentage of posters.
Just some idea's.....