I tape them over on all my cameras because they are distractions. A black blob doesn't attract attention. Camera names do. I can't tell you how many times I have been shooting an event, and constantly interrupted by people wanting to chat about my camera.
"Oh, cool, you have a Canon," or, "Wow, a 1D MkIV...can that thing really shoot 10 frames per second," or, "I've only got a T3i, but I'm gonna get me one of them 5D MkIII's." Or, they just stare into the lens, reading the name and model. I get almost none of that since I started taping over all the bright white words on the camera body.
Oh, and the 1D MkIV in your photo is really cool. I think it is the best pro camera Canon has ever made. And, yeah, I love 10 frames per second and super fast autofocus for sports! 😉