Throwing my 2 cents in.
I understand the technical issues with implementing Monero, but given the number of users that will be attracted to Kagi specifically because if its privacy, it seems quite inconsistent to only offer non-anonymised payment formats.
Search is one of the most intimate services and I absolutely won't accept linking it to my identity via payment services.
Yes, you can go monero to bitcoin, but the transaction fees and hassle will turn a number of people, including myself, off.
I've spent the past few hours looking for reasonable means to do so because I really want to use and support Kagi, but its simply not worth the effort and extra cost.
Just my views on the matter, thanks for designing such a cool and useful search engine, I'm otherwise extremely impressed with the service 🙂
EDIT: I should add cash payment a la Mullvad would also be an excellent option as mentioned previously, but I can understand the reluctance to introduce this payment method.