If you are a lead developer of what's supposedly the 'last hope for Bitcoin privacy' you should have a very clear idea of what existing solution is most private, why, how and to what degree.
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I'm not sure how they were even able to code a CoinJoin implementation (some amount of skill and knowledge is required), while at the same time apparently being so extremely naive on the whole subject of privacy.
Maybe I'm mistaken, and maybe I've fallen for some carefully planned PR, but until recently I got the impression Wasabi Wallet was created as a privacy solution with very low fees. I also assumed that's why so many people were vouching for it on Bitcointalk.
My next impression is they never expected nor planned to earn a lot of money from it, but suddenly the 0.003% fee turned into substantial amounts of money, and their priorities changed because of that.