I don't know if its just where I live, where I work, or the crowds I run in, but I never run into this excessive PC-ness in person. Hell my friends and I are all dicks and we rip on each other's ethnic background and make tasteless jokes that would give your average tumblr person a convulsion. Is it just a reddit/tumblr/GAF-OT thing or is it much more prominent in west-coast liberal cities?