It would be enough to make only one of those factors to fail the project. Even solid team members are making mistakes, but the biggest problem is greed, because they are making discounts to collect more money and are not willing to pay huge fees for a good listing.
Such actions only dictating that the team is not really interested for listing the project, big discounts attracts investors a very positive sign for scammers to runaway with the funds that they'll be collecting from those investors who are not paying attention to do their research first. But instead, because of sweet promises they invested blindly and suffered after the introductory stage was finished.