User blog comment:Rackliffelikespurple/January Featured Article Voting/@comment-22930393-20131211173208/@comment-4722469-20131213230031

Hey now, careful with the jabs. :p jk but to answer your question, we don't quite have one set per se, but articles that have been featured before can't be nominated again. While I admit, it does sometimes seem like a popularity contest, example: people constantly nominating episodes as I mentioned earlier gets quite tiring after a while; it's at least a better method than what we've used in the past, that's for certain.