I contributed an answer to Is arrow notation for vectors "not mathematically mature"?, that, much to my surprise, has received lots of votes. However, someone whose profile says that they are engaged in quality control on MSE has made some critical comments that I dispute and that are phrased in rather hostile terms: "... absurd that this answer got 121 upvotes ...", "... platitude ...", "[something else] ... does have some content". I don't mind debate, but I understand that comments on MSE are not a place to have extended debates. So how should I react?
Flagging comments that are genuinely offensive and/or not constructive as such is probably the best response. At a guess, I think that already happened here and those comments were flagged enough to cause them to disappear (deleted).