I've often said this about all centralized exchanges. Coinbase are quite happy to rat their users out to the IRS provided they are allowed to keep operating and make their obscene half-a-billion-a-year profits. The willingness of people to hand over their private information to complete strangers never ceases to amaze me.

The Wasabi and Samourai wallets are the two leading privacy orientated wallets at the moment, which both make use of coinjoin like Dark Wallet did. I think much of the more "radical" side of the community have moved to Monero, though.