I don't think of "Don't post feeding or bite pictures" as "hiding something". I don't post photos of my dog eating a raw turkey back. I never posted a photo of me killing a chicken that I would eat, nor a goat, nor butchering a cow... it's just not something I think to do because I don't think it's something people want to see.
Presenting a better image is important if we want to turn the tide that is running right now against owning reptiles. HSUS/PETA have quite effectively sent a tsunami against us and we're barely dog paddling with our heads above water. We are NOT a big, rich, powerful hobby/industry and therefor the elected officials have ZERO reason to vote on our side. The only plus we do have available is public opinion.