On every book page, add ability to ask a question of the entire community about the book.
The explanation is short so I'm not clear on what this is supposed to help or encourage. will every user have the chance to float a question? How many questions can be floated at a time and for how long? Is this any different from the planned Discussions tab?
Like Amazon's "questions" section on their product pages? Could be a good feature - but could also get real spoilery, real quick.
Of course, so many reviews are also fairly spoilery, so...