That's a very interesting concept, @slowwalker!
If I understood you correctly, you're saying that once readers are being incentivized for curating great content, writers/contributors will enhance their work.
Instead of writing 10 average pieces, which will not give them any rewards from those readers, they'll work on 1 great piece which has a much higher chance to get those rewards.
So I guess the obvious first step would be to increase the curation rewards - maybe 50/50 is enough?