I can't imagine how hard it would be to to juggle so many accounts.

You just automate them. You create a circlejerk of bots voting each the other, and mine Hive for tokens. It's all the rage in the most substantially staked circles. Hive is becoming a pure circle jerk of bots, that the whales are using to strip the rewards pool for ROI.

This plan is the death of Hive, because it eliminates actual human users, and it is human beings that comprise actual society that uses social media. Simulating society simulates prosperity, and the profiteers that do this will simulate wealth - and that is the opposite of having actual wealth.