Hmmmm.. Nice.
First congratulations on achieving this milestone.
I also get the point of releasing in parts. I think it helps when there are reviews and critics.
Sometimes this critics are constructive and so make for positive changes in the book.
I am also writing a book that talks about the hive blockchain
Yes, I wish people were more eager to give feedback. I think most people don't feel comfortable giving feedback to a friend or acquaintance.