At least for now, there remain lots of signals that are clear to those with sufficient exposure; from the piece linked in the Oxide LLM doc that was recently discussed here:

"... to anyone who has seen even a modicum of LLM-generated content (a rapidly expanding demographic!), the LLM tells are impossible to ignore. Bluntly, your intellectual fly is open: lots of people notice — but no one is pointing it out."

https://bcantrill.dtrace.org/2025/12/05/your-intellectual-fl...