I opened that question
Perhaps in retrospect I jumped the gun but I'm not about to undo it. I came across the question from the review queues. Typically I skip close/reopen reviews, I just check them to see if there is something I need to weigh in on.
What I saw was a question that IMO is completely answerable. There were a lot of comments asking for things that, while useful, shouldn't have dictated if the question was closed or not. This is neither a list-question nor idea-generation as the comments seemed to imply. I cleaned up the out of date comments then reassess the question.
The question already had 2 re-open votes at the time I came to it and, based on the quality of the question in the state I saw it, I deemed it was likely to get the other 3 at some point. Because it had been through a couple of round of open/close I thought that many of the users who were involved in the question might have already have used their votes. These factors combined to convince me that it was worth simply helping the process along and getting the question reopened.
Would you ask the same question if the post had 4 reopen votes before I got to it and I cast the last one? What about 3? Perhaps I should have left a comment but I can't think of what it would have been other than "I think this question is answerable" which is exactly what my reopen vote said anyway.