I use coinjoin, but when I have to make swaps, then I loose privacy again. Guys, how can I trade BTC -> Stablecoins -> BTC without loose of privacy?
Using decentralized exchanges (e.g. Bisa or Hodl hodl) you could trade BTC/DAI or BTC/USDC, your privacy and identity will be not exposed since that's exchanges is trully decentralized not like those called swap that has less decentralized. For better privacy use mixer before trade on DEX.
If I need FIAT I can trade on an KYC exchange a coinjoined BTC, then I use this FIAT pay taxes and everything is ok.
Seems contradicting, why you want to hide your privacy if you still use KYC exchanges (centralized)? Even though KYC is mandatory but you could get asked to provide KYC.