I agree with a lot of what you're saying here and I think the biggest problem we have with doing this on STEEM at this point is that the distribution is already so far gone that new users are never going to be able to wallk in and earn stake like we could when I get here. Most people don't know this, but I quit my job when STEEM was at 9 cents and started doing this 100+ hours a week. It's the only thing I ever really felt passionate about in my life and I felt like this was the future I had been waiting for, but the problem we have now is that users aren't earning hundreds of STEEM for a twenty-thirty dollar post. Users are lucky to earn a couple STEEM on their best work if they aren't paying for people to vote on their posts and it completely break the systems. It's so pay to play at this point that I think we're going to have to rely on second layer solutions to get people investing their time into the chain again, which is we launched PALnet. I share your concerns and while I'm not worried about the 50/50 split, I do think it's too little too late to fix STEEM alone.
RE: Why Rewards Have to Change... (Fair warning, this is a long one)