[qertoip]

Precisely the opposite, Sir.

Employing PoW to protect against Sybil attack in anonymous network is the very invention that made Bitcoin possible.

Without PoW you must ID participants, which makes system trivial to regulate or shutdown (see Facebook Libra, or security fraud case against Ripple). And no, PoS isn't the answer, because PoS implies a handful of biggest exchanges control the coin, because they genuinly stake the most.

If Bitcoin was PoS, Mt Gox would run Bitcoin to this day!

[ralusek]

Proof of Work and Proof of Stake are not too different in terms of what it would take in order to control the network. Stake and access to computing power are both just functions of being able to assemble sufficient resources so as to represent a sizable enough portion of control.