Definitely time to reconsider Kagi I think, all your searches being linked to your account was my main hangup and this solves that. The onion service is also really nice to see.
Currently they still don’t meet the requirements for being listed as a search engine, but their blog post mentions
Do you plan to allow purchasing privacy pass tokens without having an account?
Yes, this makes sense. This is possible because technically the extension does not care if you have an account or not. It just needs to be ‘loaded’ with valid tokens. And you can imagine a mechanism where you could also anonymously purchase them, eg. with monero, without ever creating an account at Kagi. Let us know here if you are excited about this, as it will help prioritize it.
If this was implemented then we could add Kagi I think without altering our requirements.