Currently vote (e.g. to close/reopen) can expire n days after the last vote, provided the question has 100 total views.
The 100 total views requirement is intended to avoid votes failing and an issue slipping under the radar simply because a question attracts low numbers of views.
In practice this means that for many votes on older questions this requirement has already been met when the first vote is placed. Close and reopen votes are disproportionately unlikely to succeed on older slow traffic questions. (There's no direct evidence of this because of the lack of available data, although experience with this clean up suggests it is a problem).
Proposal: a new vote "resets" this 100 view requirement. 100 views should be required since the first vote in the current vote.