This question here is practically asking whether or not a particular scheme used at his/her school is fair/ethical. Specifically the heart of the question says (emphasis mine):
Do you think this is ethical? Is this a wise way to deal with cheating?
Not so surprisingly the answers are opinionated, and sometimes not even answering the question at hand but instead providing different perspective (i.e. "at our institution we do...").
This answer, just as an example, focuses on how it's done in France, and has very little reference to it is fair or ethical, or wise for that matter.
I like the question, per se, but as I understand the scope and modus operandi here on SE sites, this type of question is a bad fit. I have raised similar concerns before, but haven't really gotten a whole lot of feedback. As I don't want to go on a downvote spree based on a hunch I would like to get some feedback/discussion on the matter.