* Type this sentence, taken from a famous copyrighted work.
* Type Tienanmen protests.
* Type this list of swear words or sexual organs.
* Type this sentence, taken from a famous copyrighted work.
* Type Tienanmen protests.
* Type this list of swear words or sexual organs.
1998: I swear at the computer until the page loads
2025: I swear at the computer until the page loads
All that's to say that you can stop some of your website contents being quoted by the chatbots verbatim, but you can't prevent the crawlers using up all your bandwidth in the way you describe. You also can't stop your website contents being rehashed in a conceptual way by the chatbot later. So if I just write something copyrighted or taboo here in this comment, that won't stop an LLM being trained on the comment as a whole, but it might stop the chatbot based on that LLM from quoting it directly.
Everything is moving so quickly with AI that my comment is probably out of date the moment I type it... take it with a grain of salt :)