Again, I strongly disagree with simply incentivizing profiteering from curation more than we already do.
Please consider other values than money alone, and make a more nuanced proposal, since all that providing greater curation rewards, and decreasing author rewards, will do is focus rewards more on extant stake, while reducing the incentive to produce content. You must be aware of the issues regarding retention of accounts, and decreasing author rewards will exacerbate the problem.
Why not just eliminate curation rewards completely? People already vote on other platforms without any direct curation rewards.
Of course, on those platforms they can't cast votes that provide rewards either, so there's no incentive to selfvote, which curation rewards do decrease incentive to do. However, no matter how high you set curation rewards the incentive to self vote, circle jerk, and etc., won't be eliminated, unless you so decrease author rewards that there will be no incentive to produce content to curate.
There are other values that need to be rewarded via curation, and just changing how much money curation generates won't solve the problems that currently plague curation. Gaining trending or hot status are examples of nonfinancial rewards. There are others too. Please accord other societal values some weight in considering how best to incentivize curation, so we aren't simply furthering the idea of mining steem as opposed to creating a society.
Edit: also, this completely fails to apply any tax on accounts that don't post or comment. There are accounts that only flag, for example. Why give them more power financially than folks creating content and curating? Taxing everyone else will increase the financial power of accounts that only flag, only curate, or do neither.
See this comment, https://steemit.com/blocktrades/@spectrumecons/re-valued-customer-re-spectrumecons-re-whatsup-re-blocktrades-pros-and-cons-of-two-versions-of-steem-proposal-system-20190209t063647531z
Please see my (thoroughly edited - I hope!) reply there.
Thanks!