The dynamic being referred to is that low quality comments in the form of memes, distasteful jokes, attacks on other people, and similar comments tend to get u

The dynamic being referred to is that low quality comments in the form of memes, distasteful jokes, attacks on other people, and similar comments tend to get upvoted a lot as they provide some entertainment to the upvoter, but said upvoted comment is highly damaging to the community in the kind of tone it sets for the thread, as well as the example it sets for the future. People optimizing for this kind of low effort but highly upvoted comment is called “karma whoring” on some places.