Earlier quoted context omitted.
Putting aside the claim that "LLM output [...] is almost always not worth reading"[1], the whole issue here is that this supposed ability of determining whether or not content is AI-generated doesn't exist. Is it really a valuable life skill to decide whether or not you want to read something based solely on its density of em dashes? Of course there are cases where you can tell that some text is almost certainly LLM…
> 1: You're assuming a specific type of output in a specific type of context. If LLM output were never worth reading, ChatGPT would have no users. I think nobody is upset about reading an LLM's output when they are directly interacting with a tool that produces such output, such as ChatGPT or Copilot. The problem is when they are reading/watching stuff in the wild and it suddenly becomes clear it was generated by AI…
1. In the context of research/querying, when unverified information from its output is falsely passed off as verified information curated by a human author. There's a big difference between "ChatGPT or some blog claims X" and "the answer is X".
2. In the context of writing/communication, when it's used to stretch a small amount of information into a relatively large amount of text. There's a big difference between using an LLM to help revise or trim down your writing, or to have it put together a first draft based on a list of detailed bullet points, and expecting it to stretch one sentence into a whole essay of greater value than the original sentence.
Those are basic misuses of the tool. It's like watching an old person try to use Google 20 years ago and concluding that search engines are slop and the only reliable way to find information is through the index of Encyclopedia Britannica.