Or they starting to just not care any more?

I was on FB, on some random thread (not mine) and we were discussing Trump. At some point, deep in the thread, I said, “Impeach the motherfucker!”
Some guy (no idea who he was) said, “Aren’t you supposed to be a teacher?” No idea how he knew that. Must have been something I said earlier.
I said, “Yes. Why?”
“Do you talk that way in front of your students?!”
I said, “That is a stupid question.”

Then on Fluther someone seemed to actually believe that I would share my religious opinions in inappropriate settings, kind of like a work setting, just because I discuss them here.

Do you think most people understand the concept of setting, context, and manners, or not? Or is that something else we’re losing?