RE: STEEM, SMT and/or Steem-Engine: Would a STEEM based Amazon-KDP/Smashwords/Kobo-Writinglife alike platform be feasable?

The idea is nice but the way it works here now you will not make an income for life but 7 days.
I would call that a waste of time, energy, a good book.
A good book should be published, also not be an ibook only.
What you read on paper you will remember better as what you read on a screen.

I would not publish my book here. Too less people around who love to read.