I equally think it wouldn't solve any of those issues you pointed out.
Still, 75% wouldn't encourage organic voting because the system will still look the same for those who cycle jerk and exchange votes as they still get and equal treatment among themselves.
Moreover, at 75% curation, we would see more curation snipping bots and spam voting bots (like these accounts that have voted your comment). I mean bid bots will simply be replaced by more of these bots. I can picture seeing posts with 1k+ upvotes having something $0.01.
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