Recently, a user has been filling up the suggested edits queue with very minor edits, most of the time by digging up old questions from last year, and fixing typos/formatting. This happens from time to time, but this is the second time recently that I've had 10+ such edits from that user to review.
I don't review too many edits myself, but I think I remember reading somewhere that minor edits should only be approved if the question is rather recent. Such edits should not be made to old questions, because it brings them back into the top questions list for no significant reason.
Is this still true today, or is it a rule I think I've read somewhere, but actually haven't? Should I keep rejecting these edits to keep the questions down the list, or should I consider approving them, since they usually do improve grammar and formatting?
If the solution is still to reject them, then aside from the chat (which the user might not use), is there any way I can reach out to that user and explain why I keep rejecting his edits like that? I'm considering contacting that member by email, but such information might not be available every time...