And if you were a developer of a promising crypto project, would you like everyone to know about you? After all, any crypto project hypothetically has a chance to repeat the success of cryptocurrencies from the top rating and bring huge profits to its creators and investors. I think that people sometimes hide their names for fear of pressure, threats or blackmail.
It happens very often. Just for some reason people think that if someone wants to preserve their anonymity, then this is necessarily connected with some kind of crime. More often the opposite is true -anonymity is a way to avoid assassination or threats to your address.