A community blacklist would be the way to go. I would have put some names in, but I don't want to show my bias too much.  

It's easy enough to load a bitcointalk page from the bot with a curated community blacklist. If someone makes a new thread, I can cull the blacklist from the OP or first post therein, providing the post maintains consistent formatting and if the list and curation process look reasonable. It could refresh every half hour or something.