I still won't trust Binance. I don't believe for a moment that they didn't have at least a whiff of what was going on. They likely knew something was sketchy and chose to do it anyway, because they were asked by a rich asshole with a lot of sway. For that, they chose to use their customer's crypto to effectively takeover and kill the validity of an entire blockchain.

They actually made every crypto using any kind of voting by stake or assets less viable. Because all that crypto on exchanges could be used to vote with at any time.

That has to be considered with every chain. What can an exchange do if for whatever reason they decide to use the crypto they are holding for their customers?

But yes, they do have incentives to maintain customer's privacy. They also have incentives to give it up if leaned on.