A very controversial measure, by the looks of it. I think the big problem with this is that the little user is going to get a good bang. The one that creates content worked with the hope of being voted by curation projects... Will they leave or will they demotivate? Really new investors and curators will appear, or only the existing ones will be enriched more. It is clear that 50/50 will benefit the investor, but what about the creator?
I would prefer to leave the subject as it is, because there are many content authors who make an effort and will earn less.
Because... how many times do we see whales SEARCHING good content from authors with little SP and CURING it?
NO to 50/50 and YES to the people who work on the content they publish.