This year there are so many fraudulent ICOs, and the project without whitepaper is in my opinion twice as fraudulent. I don't understand how you can create something global without technical documentation.
Completely agree with you, this year showed that projects without whitepaper were almost all fraud. And any competent investor will not invest in such projects.
Theres no precise plan or objective in such project, only those who didn't do research will invest on them. Whitepaper is a must in every project to know everything about them.