Those three proposal will only drive away most investor who hold big stake as bot operator in my opinion. Because, people do invest to make profit and not to lost.
Why not just add reward poll to reward post based on organic view from search engine. In addition, this post will keep rewarded until it adds value to the blockchain. Let author earn like they own the website as there personal blog. You may get those fund from adverts.
This makes those author out there to start blogging on steem blockchain instead of registering there domain name. Furthermore, it encourage old user to post only and really quality post.