I'm quite new to reviewing, and I'd like some advice on the following matter.
While reviewing suggested edits, several times I stumbled into the same user ($\ >1000$ reputatio) proposing edits on several-months-old posts. Most of them were irrelevant.
Of course, I rejected them (for old posts I tend to do it even when the changes concern, for instance, only grammar).
I hypothesized this user might be "badge-hunting", but I don't really care about his reasons.
Can this be considered a misbehaviour of some sort? What can I do about it? If so, in all honesty, should I do it or would I be too draconian if I did?
PS: I did search an answer to this, but I might have missed it. In which case, I apologise.