Why are they doing this voluntarily?
Because they want to protect their income stream against future regulations. So they chose to preemptively sell out their users rather than go down a more difficult route which might affect their profits.
I think they received a silent post like Truecrypt did, but Truecrypt decided to stop the project instead of installing a backdoor.
Which is what Wasabi should have done if they actually care about privacy in any way. They don't. They care about making money.
About JoinMarket:
It is extremely time-consuming and complicated, I hope they simplify it in this bull market, it has to be more user-friendly
I agree, and I've spoken about this before. JoinMarket, although great, simply isn't suitable for the majority of users as it is too complicated to set up. There is a great UI for JoinMarket called Jam (
https://jamdocs.org/) which makes using JoinMarket easier, but the installation process is still not straightforward.
And Samourai should release a desktop version without needing any mobile app for it.
But well, there is Sparrow.
Yeah, Sparrow is a great piece of software.