I came to this post while reading one of your friend's posts in which he said that @netuoso accused him of being a woman.
I was curious what he found so insulting about being mistaken for a woman.. what insult was leveled that made it an accusation.
What I found was @netuoso being aware that he might be addressing someone of either gender and used Mr(s) to avoid offense.
Seems the only sensitivity your friend has is due to overly thin skin that looks for offense where none is given.
The post is satire, a form of humour that borders on real while not being real. Usually should be best read with people with a sense of humour and apparently thicker skin.