Do undelete votes ever expire / is there some other mechanism that can cancel out undelete votes?
The reason I ask is because I came across this deleted questionthis deleted question, which was deleted by 10 people on Nov 2, 2013, and now has 6 undelete votes on it (screenshot courtesy of Doorknob, who does not know I'm using it).
I can't really imagine why this question should be undeleted, and so it seems like what is happening is that over the past 5 months, about 1 person per month has voted to undelete. Eventually, over time, I suppose it will reach its threshold and be undeleted. Is that what is happening (i.e. do the votes not decay)?
If that is what is happening, does it make sense to undelete a question like this? I could imagine that, given sufficient time the undelete threshold on almost any question will eventually be reached, but this doesn't really seem like the way the system was intended to work -- there's no way for the community to voice against undeleting (or is there?).
Perhaps there should be a way to say "do not undelete", and have enough of those cancel out undelete votes?