I agree in the abstract, but perhaps the way to avoid generic responses is to disallow (or segment) generic submissions. This website is no longer HN, it should be renamed AIN. There is only so much to say about the subject, and if cliché submissions keep getting accepted and upvoted and shoved to every visitor without a way to avoid them (barring leaving the website entirely), then people will eventually gravitate to the same responses. If your neighbours play loud music every night, they don’t get to complain that everyone is always mentioning the loud music to them.
You are a fantastic moderator, but there’s only so much even you can do. If nothing changes about the website, the problem will only get worse. I warned years ago that this would happen, the signs were on the wall immediately.