In cases such as I am referring to noticing the question was edited to be easier to answer is a meta-observation usually not obvious to whoever is doing the edit. The editor doesn't know how to answer X, but they do know how to answer Y, which is semantically close to what was asked. So the question is changed so it does have an answer.
I don't want to waste everybody's time with non-cooking discussion, but it is the one case where I have seen Stack Exchange's (the general term?) community process break down horribly.