For the people with no service and exploitative ratioed service.
I don't need wifi I have 100 gig of fast data and "unlimited" after that which I never use.
But my brother has 3 gb and then he loses internet access. You do it for him, it's common courtesy if you're operating a business which you expect people to hang out at. They are the content that attract your drink-buyers.
If you allow my searchxng search scraper then an AI scraper is indistinguishable.
If you mean, "google and duckduckgo are whitelisted" then lemmy will only be searchable there, those specific whitelisted hosts. And google search index is also an AI scraper bot.