Whitepaper and road mad are nice and good things for a project. They tell you what is to be expected of in project especially if you are an investor. But then scam issues sprung up, recognizing the power and influence of whitepaper and road, came in and capitalised on it to defraud a lot of investors
And now it becomes difficult to trust whitepaper and road map, but it wasn't like that from the beginning.
The solution I presume now; lets take whitepaper to tell us what the project devs aim to achieve; dont use whitepaper as a reason for investment.
Whitepaper have many uses. One of them is it's bring being used to explain how their platform will work and how significant it is for the investors or even to other people who are wether in crypto or not. It's still better to read whitepaper before investing; this can be also be used to indentify is a project is a scam or not.