Moving from a linear rewards curve to a convergent linear rewards curve.
Yes.
Increasing the percentage of rewards that are distributed to curators.
Yes.
Create a separate “downvote pool.”
Yes.
I talked about my reasoning for increased curation rewards & downvote-pool in this post a few months ago.
Great, happy to see you're on board
I've tried to explain before that if Steem falls enough, even low staking bid bot operators are losing too much in opportunity cost to want to support the status quo.
Conversely, bid bot operators are very much in a great position to adapt their platforms to a curation service where they can similarly profit but vote in a way that isn't completely content indifferent and therefore beneficial to the platform.
As a self voter, I certainly don't judge people for pursuing their rational self interests. But we can recognize a broken economy when we see one and it's in all our interests to fix it!