Again, you seem to be missing the point here. Those "billions of user records" are the users who thought they were not being tracked by using incognito mode. All the other users who didn't care about being tracked one way or the other are irrelevant to the use case we're discussing.
Your point seems to be arguing in favor of how a company whose core business product is tracking... makes you more comfortable you're not being tracked than an alternative with a subscription model?
>Your point seems to be arguing in favor of how a company whose core business product is tracking
I'm doing no such thing. I'm merely pointing out that a user still has tools in their disposal to prevent a company whose core business is tracking from tracking them as long as said company does not require the user to sign in with PII info.
When you sign in with Kagi, your only protection is to "trust them". Kagi's next move should be to allow mail-in-cash for account activation to back up their privacy intent if they require user sign-in, like some other privacy-focused services allow.