Important to note that Vitalik massively gains from Ethereum transitioning to Proof-of-Stake since he controls a large percentage of total ETH due to premining it before the project launched.
How can you verify that? currently everybody just listens to what he has to say, when he decided to undo the DAO hack, the original "immutable" chain just died off because Vitalik put his vote on ETH. Sincerely, I really wish he hadn't done that.
Vitalik didn't decide to undo the DAO hack, there was a community vote (http://v1.carbonvote.com/), unlike Satoshi who singlehandedly rolled back the chain in 2010 after the 184 billion BTC hack.
Satoshi fixed a bug (that reverted it back to the initial rules everyone agreed upon).
The DAO hack actually was an exploitation of the rules that everyone agreed upon in the DAO, recursively calling a function in your smart contract layer is not a bug.
This brings us to an interesting topic, bugs are common in software,
* Should you make the protocol layer so complex that it increases the probability of bugs being found, being harder to understand and potentially grind the whole system to a halt if a bug is found.
OR
* Should you break them up into layers where each layer has one responsibility (base monetary layer, a smart contract layer, a micro payments layer etc.)
Coinvotes in the context of massive insider premines is completely useless. Of course a coinvote would reflect "Yes to censoring the DAO hacker" because the DAO hacker controlled more ETH than the top 3 current ETH accounts. And the insiders stand to benefit the most from proof of stake because it's a system designed to further enrich the already rich.
Satoshi mined every single one of it and anyone would have been able to do same also he never sold his coins and left the project early on to avoid having too much control. Quite the opposite with Vitalik who on the other hand premined his eth, has been selling them Ever since, and continues to have significant control over ehereum.
That's fine as long as we agree that Ethereum is not a form of currency, otherwise it becomes terribly regressive for one person to have that much stake that continues to collect even more ether in the process.
Wouldn't it benefit you much much more because, well, you premined a billion dollars worth of ETH for yourself and designed Ethereum to benefit wealthy people?
I salute you Sherlock.