I was reading the Princeton Companion of Mathematics compiled by Tim Gowers and team and a thought stuck me.
What we if produced a compilation book of the most interesting problems solved in Math Stackexchange?
Assuming that we agree upon a definition of interesting problems solved here and a time period say all questions posted on be before 31-Dec-2016, the main question is would such a compilation be anything more useful in the form of a book rather than having them math.stackexchange.com. Other than the love of labour, is there any motivation to produce such a book?