People can be outraged at two things although I wouldn't call my comment outrage. It just boggles my mind that a 80 year old person thinks it's ok to talk to people like that. Being respectful to other people is free. It would have cost him nothing to not post the comment.

I was taught at an early age to be respectful to people even if you disagree with them. But I was also taught to take up arms if someone tries to fuck with my rights.