Recently, we had a user who asked the same anti-semitic, off-topic, and frankly just absurd question multiple times (at least four or five that I have seen, but I would assume that I also missed several question). The user used a different handle for at least some of the questions.
Each time, the question stayed for multiple hours.
In addition to spreading anti-semitism via this platform, this also takes up resources of users trying to refute the absurd claim of the OP each time they ask a new question.
Obviously mods aren't available 24/7, and maybe we do not have enough community members with close/delete vote privileges to react in a timely manner to such questions.
But is there something that moderators can do about this? For example, is it possible to permanently ban a question based on specific keywords (or put it in a moderator-only review queue first)? Or manually ban a user based on IP/user agent/etc (obviously, this can be bypassed, but if such mechanism exists it might be worth a try)? Is there something we as users can do (I assume that we should vote to close, flag, and/or downvote)?