... there are very few users with enough stake for their votes to count spending time to find your content and vote on it. There is little economic incentive for them to do so. Instead, they mostly delegate their stake to bid bots ...
... and in future they will join automated curation trails which are upovting stuff from popular users who are earning anyway.
Who isn't curating manually now, won't do that if he gets 50 % curation rewards.
A real curator loves what he is reading and will curate anyway, he doesn't care if curation rewards are 50 or 25 %.
When I upvote stuff I upvote it because I like it. I don't care when I upvote (if for example after exactly 15 minutes), and how many other users have already uptoved that post.
I intentionally seek posts from new and/or unknown authors to give them a dollar or two.
With 50 % curation rewards I can't give them the same amount in future, because then I myself will get a big part of my own upvote back (as curation) instead of being able to support the authors! Sounds ironic anyhow: then I want but cannot anymore support people ...
Why do 'stake holders' care so much about their ROI? What does it help to get a bigger part of a cake which is getting smaller and smaller? I prefer to have a smaller part of a huge cake. :)
If I knew it would let the STEEM price increase significantly, I would accept not to earn one single STEEM from now on. :)
Any why would it increase the STEEM price to seek and upvote posts from new and unknown authors manually? Because a rich pool of satisfied users would also make STEEM much more interesting for larger investors in the long run than it still is today, interesting to place advertisements read by many, to market products, to disseminate information. The value of a (social) network is measured among others by the number of its users.
More thoughts are to be found here.