You sure you read them what i would suggest you is take any 2 ico and compare their whitepaper line by line you will start noticing the amount of similarities in them they are just changing the sentences to make it look more legit.
of course, when it comes to money, every business I do in bitcoin must be careful, let alone to join and invest in ico should be careful, because there are so many scams in the ico.
Let's say i tell my business plan and assure that it will get listed on major exchanges in my whitepaper if i don't do what will you do payments sent to an ico is irreversible