There's a lot of project are using old coin/token whitepaper and make it fresh looking because of their creativity but after they've got your money for IPO/ICO etc they will create a drama and suddenly gone with the investors money.
That happens way too many times, I mean if you have the money doing it is not hard at all. Give me 100k and I can collect millions of dollars for you, that is the trouble of the crypto market. If you have 100k, you can spend 10k on development, 1-2k on design stuff, 3-5k on staff to control everything and then you can spend at least another 50k+ on marketing on the greatest places and you will be capable of collecting millions of dollars.
This is why it is filled with these people, not all of them spend 100k on this but the reality is that even if they do not spend 100k, they still earn more than they spend on the project, spend 5k and get 10-20k, spend 10k and get 30-40k so in the end it is profitable to start a new project, and when it is that profitable to start a project, everyone starts to do that. It doesn't have to be profitable for everyone who invest, project owners only care about how much they make.