I'm sure this is by no means a new issue, but recently a number of new users have emerged with a barrage of low-quality, if not blatantly off-topic questions. Most of them quote a phrase and ask "is this idiomatic?", which surely falls under "asking for someone to find and correct errors". New questions have been created which are simply questions about other answers they have already received but don't comprehend. I'm concerned that this will make searching for past questions and answers more difficult, as dozens of questions now have titles like "it this idiomatic?" with no reference to the actual content of the question.
I'm using my close votes more than ever, and some have been closed, but still the same couple of users continue to spam the site. What would be the best way to address this issue with an individual? Is there a way to flag a 'pattern of behaviour' to moderators rather than just flagging an individual post or user as being an issue? To be clear, I don't want to flag the user as requiring a ban but have moderators offer some advice on posts, or limit their posts if necessary.