Who among us here have been victims of almost perfect Whitepaper?
Those sublimely well-written, full of excellent ideas and proposals that turned out to be a piece of crap!
Reading whitepaper is not enough to be a basis of investing in crypto because almost everyone can write whatever they want,
they even promise you the Moon and Stars.
So, be careful now in choosing ICOs, as much as possible look for projects that at least have initially implemented the products or services, if not the whole. 
This is probably the closest thing about whitepaper

I have seen so many whitepaper that are out of this world and to good to be true, but ended out very much different from what they stated in their whitepaper, but we still need whitepaper, but don't believe on it right away there should be a good logic on those whitepaper, ask these people how close the implementation to the real thing, experts analyze a project whitepaper, for legitimacy.
The whitepaper could be more important when all project indicated there will implemented, but very sad but true, i've been saw guys offered a whitepaper job on a service section, it means they have a template for it, some sort of edting and adding some colorful words then it will become an ICO's thats why some comment here are right, we need to look the people behind the project.