[NetRodent]

The only problem I can see with this idea is the potential to create a circular list that would be impossible to get off.

For example, what would happen if somebody was blacklisted by the Hun but then later removed from the the Hun's list? When list is initially syndicated, I'm sure other webmasters would add the Hun's list to their blacklist which they might then turn around and return to you. I don't play the TGP game, so perhaps I'm off base but I have to assume that people are occasionally removed from individual blacklists.

You might also want to consider TGP's blacklisting people they don't like but who aren't cheaters. The system you propose would be a good way for someone to syndicate his emnity for another.