Fiat anything's reversible with a court order.
A court will only enforce a contract and has a high standard of evidence necessary to issue an order effectively "reversing" a fiat transaction.
...
A "mass payment" pp transaction is going to be reversible because the owner of the sending account can claim their account was hacked and/or the funds could originate via fraudulent means.
And if PayPal doesn't reverse it after receiving those types of claims, a court will order PayPal to reverse it, after receiving sufficient evidence. The
BTC sender loses the fiat they were sent in exchange, as it's reversed back to the original PayPal accountholder, the anonymous
BTC receiving scammer gets away scot-free.
Technically speaking, a court could reverse a Bitcoin transaction by ordering one party to pay another party the fiat equivalent of a btc transaction and jail someone who doesn't comply.
If the court knows who received the
BTC. Non-dumbest PayPal scammers wouldn't use accounts with their own identity tied to them in any way.