I think this is now an interesting part about LLM based automation. The scientific community is quite strict on references. Even with its most advanced model ChatGPT isn't reliably able to tell me if an online shop has an item in stock. Then the other part is peer review which isn't optional either.
Yes, the whole point of captchas is to capture automated systems. I used captcha as an example. There are a whole host of other anti-bot countermeasures.