We are way past that point now. It's a common tendency around here, especially taking into account how often those type of posts are actually the ones on the top. Gladly we still have people like your parent to call them out immediately.
Yeah, but eventually the downvoting/community moderation will do its work: it just takes a few hours sometimes. But the original unkind remark has gone from top level comment to nowhere near the top of the discussion (at least I haven't managed to find it other than via my own profile because of all the newer and more upvoted discussion that's happened) fairly quickly.
