I admit I’m a n00b, and don’t really know anything about voting abuse, but I’m wary of any system that limits downvotes. There are a lot of players, and a lot of submissions, and frankly there are a lot of bad ideas. If something is typed wrong so that the random words don’t come up correctly, or is a repeat of something that’s already been suggested, or is just plain not funny, people are going to want to vote it down. Seriously, how many jokes about yaoi do we need? If the designers are keeping track of voting records, they can contact people privately if they suspect them of abuse.

Just a thought on copycats: is it possible that some repeats are not attempts to cheat but the result of people just not looking to see what’s been submitted? For example, I saw the skeleton avatar w/the name “Starving Artist” more than once, but it’s so obvious an idea that two people could have come up with it independently. Maybe a search option, or a notification if someone has already submitted the same name?