How is a service that's "fully decentralized", not have an option for a tor version or even have an option for one to run their own node and run a network of a censorship resistant decentralized service? I mean as soon as the sanction came into play, the main website went offline, default RPC protocols blocked, GitHub deleted, etc
Tornado Cash's contract is still up and running, that's where the decentralization comes from. You could claim that it's too hard to run your own Ethereum node (for the RPC access) and host your own copy of their frontend, but this is still possible.
Users can also interact with the smart contracts directly without the front end. Those smart contracts are also immutable because the ownership has been renounced.
Also, it has begun. Blocking addresses is expected from centralized exchanges, however, a Defi exchange is also blocking addresses that connects to Tornado Cash hehehe. This is head shaking.
Uniswap the Decentralised exchange has blocked 253 crypto addresses over the last four months that it worked with TRM Labs, which is a blockchain analytics firm. The reason behind the blocking was tied to connections with stolen funds.
This makes it the first ever time Uniswap disclosed data which is related to wallet blacklisting. These stolen funds were related to transaction mixing services that included Tornado Cash which was received as sanction from the US Treasury.Source https://bitcoinist.com/uniswap-blocked-253-crypto-addresses-heres-why/