The whitepaper is the key function of ICO which describe the project and future goals. Since past whitepapers are the most important thing investors are looking forward. But these days people pay less attention to them and many fake and low-quality ICOs destroys the spirit of Whitepaper. In that case, people do not pay much attention to it. Once I saw the complaint post which shows whitepaper full copy of another ICO. So these days we can put 100% trust about the whitepapers because of the scammers.