Marketing is the most important in promoting a product. Even a very well-made product without professional marketing can be a complete failure.
Perhaps this is one of the significant problems for many crypto startups. There are not a few good ideas, but few implementations and even less implementation and competent promotion.
It is logical that no one heard about good ideas, this is a flaw in informing, experience shows that without a promotion strategy the project will remain with the idea without raising funds and in the future it makes sense to continue marketing for the product.