Malicious stakers could not reverse transactions without losing their stake. It's as if a 51% attacker in PoW got their mining rig burned down. Malicious stake

Malicious stakers could not reverse transactions without losing their stake. It's as if a 51% attacker in PoW got their mining rig burned down. Malicious stakers could indefinitely conduct a censorship attack. To address this, the PoS equivalent of changing the hash function would be to fork the chain and leave out the attackers' stake.