A lot of people assume that everything is on the up and up just because the person offering something is black. They will give support solely to help another black person. These scammers and grifters know that so it's a part of their hustle.
When Umar was asking for people to fund his school how many people opened up their wallets no questions asked? You had people getting mad and attacking anyone who had the audacity to ask questions. That school still isn't up and running. The Tulsa fund is another example. People didn't like Jay Morrison being questioned.
Anyone asking for your money in exchange for goods or services needs to be vetted especially when they're asking for you to give them money so they can help you make money. Some people are just easy licks and will get caught up in pyramid schemes, grifts, etc. Hell some of y'all been conned by coli members asking for money