It's common internet practice to put a /s at the end of your statement when you are intentionally pushing sarcasm. Otherwise, it's a bit hard to detect from reading text on a forum vs hearing someone's tone of voice.
This sounds like several techs that used to be in my shop. [email protected]#$ing all the time about what someone said etc. The only opinion or idea that was valid was their own.
I think it’s called “keyboard cowboy”.