Before I joined STEEM i used to write a lot on wattpad which was an app for writing stories and interacting with other aspiring writers. It was a great way for people to write a book chapter by chapter with constant feedback from the community. I always wanted to take the best content and start a publishing company from it as it attracted millions of users and authors with an app for reading their work. You could build a following and a portfolio.
My vision was to contact the best authors and offer them a publishing contract with a small cut of any profit that i could make them from the book. That would be great to see on the STEEM blockchain. Or something similar.
Niallon11, Steemhouse is a blockchain based publishing company. Our principle is similar to what you've described, except that we don't encourage publishing anything chapter by chapter. That's best done in closed critique groups, but we have that resource to offer as well.