My favorite Bullshit Job was my very own. There was an employee that was hired only because, well I couldn't say No during the interview.

He had nothing to do so they turned him into a human website health checker. He had a page with dozens of iframes of all our websites. He would spend the day refreshing the page, reloading the iframes in intervals. If any failed to load he would report them.

Not knowing what the page was for, i was asked to automate refreshing each iframe after an interval. This meant, he wouldn't have to click the reload button anymore. Just sit and wait until a website failed. I thought his job was bullshit. Until, I realized that I had just automated a bullshit job.

Longer version: https://idiallo.com/blog/the-40-million-dollar-job