But after you have used that coin or transferred it to another users, you are actually signing full ownership to a new recipient wallet.
You don't have any reason to worry how the new owner spends it. If he carries out illegal activities, sure it would only be seen on the Blockchain that you were the previous owner of that coin.
Thanks. But though I may conceptually be "signing full ownership to a new recipient wallet", from a chain analysis perspective, there may be no way to know that that new wallet is associated with someone else. It could just as easily be another wallet
I created. (Of course if the new wallet has KYC Bitcoin associated with the new owner, that would presumably associate the Bitcoin transferred from me with
their KYC. Right?)