First they make promises to get people to back.
And then they continue communicating as long as they want more of your money, often promising even greater things and often allowing you to pay more to get sometying even better.
Then when things are not working out or maybe you dislike the direction it is going you have absolutely no rights, you take the same risk investors takes without any of the rights/benefits you get from being an actual investor.
Often the company/individual you supported will just ignore you.
It sucks really bad to be taken advantage of, i had a similar experience with another project and it really reminds me of star citizen (i lost half of the 1400$ i 'invested').