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I agree, It's important to actively manage the votes and adapt to the situation. When the vote delay is implemented the risk will be a lot easier to assess. The obvious threat is gone for now though.

The vote delay does not address the risk of a stealth attack where a malicious actor can spread his stake and wait for the right moment to overtake consensus. Of course it would be more costly to do it on HIVE than on STEEM (you actually have to purchase the coin on the open market).

Sure it is still possible. But easier to detect, even if it's spread.