Conclusion: we should not try to maintain our privacy by relying on centralized services as such centralized services are likely to be shut down and such services are full of risks and red flags due to requiring a middle man, when it comes to maintain a good privacy, while Bitcoin is fully P2P.
Ok and we should do what then?
In your entire topic and conclusion, you only said not to use mixers or centralized providers
But if I have 0.5 BTC and I want privacy to send to another person what do I do? Because mixers are a great way to solve this, and yes they can be honeypots or store information, but what other option we have? Do not just attack the solution without giving us the right one
Op are referring to those where logs are not in a total control of the users, not just logs though the coin themselves.
There are others services built that doesn't follow this standard, they offer decentralised services, all of this goes beyond KYC but site like kycnot.me can be helpful in this light to know some that offer not just non Kyc service but are also decentralised.
