I have not read the paper yet (in my backlog, here's the paper: https://arxiv.org/pdf/2307.09009.pdf ), but it's important note that the paper is entitled "How Is ChatGPT’s Behavior Changing over Time?" not that it's necessarily "getting worse." Here's a more nuanced (not an AI clout chasing account) discussion by Arvind Narayanan (Princeton CS prof) about the results: https://twitter.com/random_walker/status/1681489…
OK yeah I mean that's kind of critical information, wtf. I've upvoted this because it needs to be the top post. That's massively important - obviously you could go from ~100% to ~0% if your judge can't handle formatting changes.