llms.txt is supported by 0 of the relevant ai providers and must be seen as harmful
.. as the webmaster implemented something that they might thought has an impact (false sense of impact), but has zero
so net gain negative
i consider such lists harmful - a good website is one that supports the goal of the website providers and its desired users (some of these users might be bots)
a bad website is a website that does everything for everyone just because
"The Unreasonable Effectiveness of Checklists" (https://rs.io/unreasonable-effectiveness-of-checklists/) comes to mind.
When I was younger I would have though the same. Now that I have more humility and less working memory, I think differently.