At the time of this writing, this question was written 57 minutes ago, closed 43 seconds ago and has already earned itself one delete vote:
According to the FAQ page about deleted questions, there's only one scenario in which posts earn delete votes: when they've been closed for more than 48 hours. So how did someone vote to delete?
Here's some good old-fashioned wild speculation:
after question is closed, OP's right to delete unilaterally gets converted to the right to cast one delete vote not bound by the 48-hour timerEDIT: this guess is wrong, per that question's OP
- based on the comment and revision history, it looks like the OP deleted and then undeleted the question shortly after it was asked; this might be some kind of unintentional aftereffect of that deletion