3. Some of your coworkers may be among that group who finds it offensive or jarring. Maybe this is irrational, but we all are. I bet there's a sequence of ASCII bytes (say, art of certain infamous images from the early internet) that you wouldn't like to stumble across either.
And that’s what drives this ever increasing PC culture strangulating the world: fear.
You have to fear that everyone will react like the most sensitive that exist (as incredible rare as they are). And, you have to fear those who are offended for others even more so, since those are the only ones you’ll have a nonzero chance of interacting with.