I have heard this so so many times. ETH moving to PoS fully in X months. I'll believe it when it happens.
And I'm glad they plan on making it happen cause there way too many things harming the environment already. A major cryptocurrency reducing their environmental impact is welcomed.
What happens if the devs go crazy and decide to eg. Ban transactions smaller than $1M worth of coins in code.
Someone made the point the other day that miners might not fancy this PoS change because they’re heavily invested in equipment.
So miners have to make a cost-benefit analysis as to how much control they can exercise while not causing a hard fork as well as what the consequences of causing a hard fork would be. Likely right now they're using accrued coins to prime their stake in PoS rather than directly working against it - delay helps them here.
There are many checks and balances to all successful open-source projects.
And when that fails you can always fork it.
The more than 1000 validator nodes require a proof of stake.