Isn't the take away of this is to sell all tokens on Proof of Stake chains? I see Steem is going up. (What the Heck?) It's a good time to sell. Buy some Proof of Work coin where you identity is not tied to an address. I guess the Bitcoin could be used to block me from using my coins tied to my published addresses, but what about the change addresses? Not so easy.
At the end of the day, if someone really, really wants to influence the system and has the resources, it is possible.