Subject: Re: [bitcoindev] Reiterating centralized coinjoin (Wasabi & Samourai) deanonymization attacks

From: Yuval Kogman <[email-masked]>
Date: Fri, 4 Apr 2025 19:58:37 +0200

That's 3 months after Kruw'd coordinator started operating, 2 months
after his podcast appearance which I linked to, and 7 months after the
change was merged despite NACKs, as I have already stated in the very
same email you are quoting:

> During most of the zksnack's coordinator run, that surplus went
> towards *mining* fees, and was widely understood to do so. This part
> is entirely server side policy, and possible due to gaps in the
> protocol and the client implementation. The coordinator software was
> modified to claim those excess mining fees with no justification of
> overruling cNACK that had led to it being not merged 6 months prior
> https://github.com/WalletWasabi/WalletWasabi/pull/10884#pullrequestreview-1485776991
> and that was only publicly documented around 7 months later, after the
> zksnacks coordinator shutdown and the removal of explicit coordinator
> fees https://github.com/WalletWasabi/WasabiDoc/pull/1841/files and
> only fully clarified a month after that
> https://github.com/WalletWasabi/WasabiDoc/pull/1859

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