Then it’s a problem of the platform, if there’s no way to either tag content on a particular topic, which people can filter if they wish, or a place for meta discussions, which people can choose not to visit. I still agree with the OP that simply deleting/forbidding this content isn’t a good option.
Why would their experience be relevant? They’re asking a question, so obviously they have things to learn. You could be nicer about it.