It's only for people who want to trade their privacy with money.

You make people know YOU more than what you offer or your service, so the spotlight is YOU, whenever you doing something, people mostly care with YOU. Personally I don't like that, I'd rather show my service/product without revealing my face, which is known as faceless content.

If people use your service/product without knowing the creator, trust me, your service/product are really good because they only cares with results.