Having multiple coordinators is meaningless if Samourai is still running all of them.
^This.
The decentralization of WabiSabi coordination is ahead of this already since Nostr is used for discovering new coordinators.
Since the blog lack many details, i have so many question. For example, is there any mechanism to protect against de anonymization by sybil attack? I also wonder what will developer of wallet which offer Whirlpool feature (e.g. Sparrow Wallet) do.
Whirlpool is uniquely vulnerable to Sybil attacks since the attack victims pay the mining fees of the attacker. JoinMarket has a mechanism to prevent Sybil attacks called "Fidelity Bonds", see
https://reyify.com/blog/poodle and
https://github.com/JoinMarket-Org/joinmarket/issues/156