Saito isn't an obscure blockchain. The formal proof of its sybil-proof properties is also chain-agnostic. https://github.com/SaitoTech/papers/blob/main/sybil/A

Saito isn't an obscure blockchain. The formal proof of its sybil-proof properties is also chain-agnostic. https://github.com/SaitoTech/papers/blob/main/sybil/A_Simple_Proof_of_Sybil_Proof_Lancashire-Parris_2023.pdf https://github.com/SaitoTech/papers/blob/main/sybil/A_Simple... It would be difficult to modify POS to have these properties, but the question of how best to accomplish that would be something for developers in those other networks to address.