I'm not actually all that much bothered about the 50/50 Split. The decrease in income for postings under 20 Steem bothers me.

And that will hit both small authors and curators. And the amount of posts is already falling:

As is the amount of votes:

As is the value of steem itself. Note that I did buy steem and powered up in the past. But I don't see a point in it any more.

My suspicion: The dolphin to wales have all the steem they want and smaller accounts are disillusioned and don't want to invest.

As for a 10/90 split: Why not go all the way and do 0/100 split like @dtube? We'll see how that will work's out. It's worth a try.