I saw this custom reason for close voting:
Any question that falls under this category should simply be closed as "unclear what you're asking". It needs more detail, so, as Eliah Kagan says, why not vote to close it immediately?! It is not going to help the site by staying there.
Besides, how long should we wait before VTCing? A day? two days? a week? a year?
Also, it assumes all users of the site who don't watch their questions are male.
This has some issues that need to be dealt with.
I would have suggested:
Other: This question is off-topic because it is unanswered, and the original asker has abandoned it for at least {amount of time} despite requests for additional detail.