I am definitively in favor of that process.
By the time the 5 "close" votes are here, not enough people are still looking at the question to care to vote for reopening, even if they wanted to at the time where closing votes were being (slowly) set.
Of course, it has been proposed "numerous" time on UserVoice already:
- Currently, the "Add anti-close votes" is ranked 6th, with 179 votes.
- Before that, "add "stay open" / "stay close" links", marked as "duplicated", with the comment "numerous duplicates", but without ever mentioning one single similar request.
Note: since 2014-05-13 ("When did I get close-vote superpowers?"), users with a gold badge in a tag for a question can immediatly reopen a question closed as duplicate.
This is a (very small) improvement, which doesn't address the initial issue: there is no way to be notified when a question get (finally) closed in order to cast one's own reopen vote.
As I commented beforecommented before, notification is really broken or non-existent on Stack Exchange sites.
(That is why I have almost 8000 "favorite" questions, in a desperate attempt to catch some of the events which can change the questions I have answered to)
... and "close" events aren't detected anyway, even when you "favorite" a question.