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. 
It was relevant at the time of your post but now most of the bad, fake or low quality projects are mostly pointed out by the community and people stay away from them and i have seen such projects with failed icos and not been able to raise any funds.
On the other hands good projects are selling nicely and it is easier to identify good projects now than it was like 2 years ago.