On my opinion, the current question voting/deleting mechanism is bad, because it often closes(deletes) valid questions as well. But it is my opinion only - until now.
Now, I've found an idea to get evidence to prove that. I can see a possibility to audit the question closing/deleting system.
This is very simple: First, I sample the site for closed, but good-looking questions. On my own experience, especially the questions dealing with the solutions of the Einstein Field Theories are somehow disliked by some voting machine, but probably there are other, misteriously disliked areas as well.
Then I get good physics question with google from believable sources. For example, I ask things to which I already found an answer on arxiv (of course only in old and well-referenced papers).
And then I put them on the site as my questions.
My hiphotesis is, that these questions will be closed(deleted) as well.
And my actual question were: if I did this, were it an acceptable behavior, or not?