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. 
I think Yes it is - we all used to step on a rake and not a time. The number of ICO increases every day and companies only need to get your money out of you. Write a fabulous white paper, draw a perfect site and the idea of the project can be any advanced PC user, but to make a really great product should try.
If you are sure that you can recognize a good ICO thanks to the lists and ratings I will upset you. Although they were originally created for those who find it difficult to understand this topic itself, and it is much easier to go to the rating and choose a project with a high rating, there is no less fraud, with which a high score is gaining Scam projects.
And yet, when choosing your ICO in addition to the beautifully written white paper and the site, I would recommend you to pay attention to such things as:
Uniqueness, necessity of idea;
Clear goal;
Scalability;
Transparency and accuracy of budget;
The concept, the product;
Team;
The distribution of tokens.
Of course, ICO, which satisfy all the points, not so much. But the options of "profitable investment and" many investments " are not equal to each other: you can invest in one successful project, and you can in 10 failures. So good luck with your choice.