There's post of you quiet literally saying you're angry about something, here's one of you saying "It makes me angry that people like a career criminal and riot in his name.", here's another of you saying "The one where he tried to touch a little girls breast makes me very angry.", or how about one where you just say "That makes me angry.", and here's one where you even felt the need to add four mad emotes to show just how angry you were.
If those are not you displaying anger then you need to work on those vocabulary skills.
No. It's just a icon used in context.
Like I said in that thread. I'm angry...followed up by They call that music
If you don't see a joke there then you're lost to everyone and his dog.
No one can offend anyone.
It's the people who chose to be offended that get offended
Is factual and true. And the self-conscious emotions don't help.