Having been educated by the "hit and miss" method (and my teacher seldom missed when caning me) hasn't helped me to follow this comma debate too easily. Today, kids are considered High School level if they can end a sentence with a period. (If they start a sentence with an uppercase letter then they are at university level!)
This debate would be pure gobbledygook to most young readers today.
I have a friend who is totally a puppeteer like this in real like...I love the pointing out someones unavoidable reaction to something before giving them cause to react.
BUt the internet boards are real life. Get the wiff, biff?
BTW, "...jerks with whom everyone automatically disagrees." does not mean the same thing as "...jerks who automatically disagrees with everyone." The original grammer is acceptably correct.