The factory I had worked at before had an actual rule on their books saying that you can't say anything negative about the company on socials or you'll risk being disciplined or terminated, same goes for drinking while wearing anything with the company logo. Which btw part of the dress code there was that you had to wear a shirt with the company logo on the floor.

That's because of the federal level 20 or 25 year rule on importing cars that's been on the books for more than half a century.