xmrk ₿ ⚡️ on Nostr: Could you explain what is wrong with JoinMarket, please? I would expect that the ...

Could you explain what is wrong with JoinMarket, please? I would expect that the fidelity bonds they use are an incentive to not do Sybil attack, to use just one identity. I see a problem if a taker does not care and takes offers with no or insufficient bonds. Or perhaps chainalysis and friends have enough money to put in the bonds, so it is not a real obstacle for them?