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.
Maybe what you meant is "Don't let the announcement or the release of whitepaper as a reason for investment". I remember those days when a mere announcement for WP release would cause an instant pump. A few made some money on that while many lost due to the immediate dumping.
having said that, there is no way that you're going to invest in any project without reading the whitepaper. You'll have to rely on it somehow.
I have long ago made the decision not to pay attention to the qualitative information about the projects. In any case, a full-fledged analysis of the project is not enough for 100% of the result and you still can not be sure of good prospects. I have repeatedly encountered such projects, in which everything was very well written and its impossible to find dark spots behind the team, but in the end it turned out to be a scam.