Case in point: I just reviewed a report where the author apparently used an LLM to decode base64. The result has nothing to do with the input, but it's pretty easy to find its sources on StackOverflow.
The person has several years of experience and a decent CV too, currently working in a senior position.
RE: https://infosec.place/objects/21ef69ce-b684-4e85-af5d-9c8729f3aeca