Wasabi has been reusing addresses, a lot, which has resulted in a lot of post-mix coins being linked back to pre-mix coins and being de-anonymized. And then the devs have been on Twitter, both defending that it is "acceptable" and also lying about entirely.

Here's an example thread: https://nitter.it/HillebrandMax/status/1586249382097088512#m
Gets shown address reuse, claims it isn't from 2.0 and that it has never happened in 2.0. Then gets shown address reuse from 2.0, and says they've already patched it. How could they have patched it while also claiming it has never happened? They are lying somewhere.

Here's another example: https://nitter.it/ErgoBTC/status/1585671294783311872#m
And dozens more: https://nitter.it/wasabistats

But the dev's don't care, because apparently some address reuse is "acceptable": https://nitter.it/HillebrandMax/status/1586321068129939456#m