Earlier quoted context omitted.
Kagi accepts bitcoins but Vlad (the founder) mentioned on their forum that so few people use this option that it does not make sense to work on accepting Monero.
(vlad here) Rather, we are opportunistic about it and we want to focus on things that make impact (which most of the time is search, not billing). If there is enough demand, we will work on Monero support - and yes I agree, buying privacy pass tokens, without even needing an account, is one of those super-cool use cases.
This feature looks like it narrows the gap a bit though.
Nice work