Can you elaborate? I was about to ask that question

You could put this captcha in a location that wouldn't be very visible for a human, but if the LLM is looking at the HTML he would find this form.

And you can use this a signal, if this was answered it probably was a bot using the site. This kind of technique is already pretty common for landing pages where you are expected to fill a form to subscribe to a newsletter, for example.

	▲	dylan604 2 hours ago \| parent [-]
		Does hiding things from humans with display:none or visibility:0 work against bots. Don’t they look at the styling? Even stacked elements should be discernible.

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fsfasfd 3 hours ago | parent | prev [-]

If something is not NOT human, then it is human. :)

	▲	luke_s 3 hours ago \| parent \| next [-]
		Ha! So basically to get in to a site protected by it, you need to _fail_ the HATCHA.
	▲	steve_woody 3 hours ago \| parent \| prev [-]
		irrefutable logic