> except that is only applicable for (proof of work POW) consensus and does not apply to proof of stake (POS) and delegated proof of stack (DPOS) which several of the top blockchain projects are currently using (even Ethereum is moving to POS).

For POS, you have to trust the rich people and you have to trust that the disincentives to cheating actually work the way they’re supposed to. Neither of these have very compelling arguments right now. The fact that Etherium thinks POS is ready is utterly unconvincing — Ethereum also thought that Solidity and its VM design was ready, and that has withstood the test of time very well.