RE: Curves and Curation... An Opinion
The problem with the current design of the blockchain is that it can be gamed with self-voting. SP holders can allocate earnings for themselves both from the curation and from the author pools.
In my opinion the incentives would be better aligned if we could not take from both pools at the same time.
If the rewards pool could be split 50/50 between authors and curators and we could somehow prevent people from earning curation and author rewards with self-voting I think we could have a better setup.
To avoid self-voting via alternate accounts we could have some sort of proof of the uniqueness of an account. Of course there would still be the possibility of off-chain agreements but at least it would not be built into the system.
Anyhow, there is no perfect system and humans will always find a way to gain the upper hand, the only thing we can aspire to is to minimize any form of abuse.
If we change curation and the curve, large stakeholder will get the increased curation rewards on their own votes. So that doesn't change a bit, it just gets allocated from different pools.
The key to changing the curation rewards to 50% would be to make it impossible to get both curation and author rewards on the same vote. That way you would need to choose how to get rewards, either posting or voting. In this scenario the easiest way to for SP holders to get rewards would be to vote on other peoples post (making a post involves more work than voting).
Unfortunately there would be several ways to circumvent that limitation, off the top of my head:
In a perfect world we wouldn't have those workarounds and the incentives of authors and SP holders would be aligned e.g curators would only get rewards if authors did.