Recently, I have noticed there is an increasing number of closings (or at least, close votes) on questions like this one. That is, archaic questions with accepted answers, which do not match the "effort" criterion practically imposed on most new questions nowadays.
I stress new, because this criterion is used mainly to discourage homework-grabbing practices, and to make it easier to write helpful answers for the OP (which is not by definition identical to great answers in my book, although they overlap naturally).
But for the type of question I describe, these motives do not apply. I am curious to hear about reasons for these close-votes.
I can think of one good reason to vote-to-close these questions: to indicate that they are not indicative of what constitutes a good question on MSE today. However, this reason is IMO mitigated by the other main purpose of MSE, namely that of a mathematical knowledge repository. Moreover, if it is for this reason that these questions ought to go, then the close reason should indicate this; I don't think that the close-votes really envisage reopening the question after "context" has been added.
N.B. I read this thread, but I contend that the scope is different enough for this not to be a duplicate.