See my other reply. I really believe that the biggest problem is simply that we have elevated this whole content and curation mechanism into something that it supposed to be a big deal on its own, when in reality it isn't.
It isn't that it has no value on its own but it really needs to be just a small piece that starts the ball rolling on building a larger community with its own vibrant economy that does much more (which makes the costs of paying content an acceptable means to an end). When it becomes too much of the focus and only a small part of the story for where Steem is going then, the fundamentally unfavorable economics of it all become dominant and value just bleeds away.
The attention economy was never a good story here. Attention has value but it has financial value that can be monetized only to the extent it can be tolled off, as sites like Facebook do. That's not a good fit for a blockchain economy which is built around permissionless access.