>>1316183Because they are still real people despite playing characters part of the time and hiding their faces. When it works out, it lets them create a persona that can entertain people and make it so you don't have to worry about any of the unpleasantness that would happen if they ended up showing their real selves. It's not like it always works, but the possibility is always there since they can just change the "character" rather than have the person do some kind of actual personality change that would seem completely fake.
