Earlier quoted context omitted.
Not to mention the thousands of little subcultures that exist. I've seen people offended by others leaving notes that seemed polite to me - "please refill coffee pot if it's empty" as passive-aggressive, etc.
Is being easily offended a subculture? Boy did I miss that memo, but it makes sense!
I mean, I was chastised for taking a picture with a Buddha even while I did my best to be polite (I knew taking photos was OK but you had to make sure you weren't standing higher than the Buddha, etc.) - to me it seems kind of arbitrary, but I don't think the people offended ("annoyed with another dumb tourist" might be more apt) were being unreasonable.
In my case it was just a move to a different country and the social norms about what was acceptable, etc. are slightly different.
I've always advocated for a "refill the coffee if you find an empty pot" rather than "refill it if you empty it" approach since the latter means you _could_ be wasting a pot of coffee if you happened to be the last to want coffee that day, but I get that people have different views.