As usual we have a word in German that perfectly describes what we witnessed tonight.
It's called "Fremdschämen" and it's the vicarious embarrassment you get when you see something so deeply mortifying, you feel embarrassed just watching it.
@fribbledom The English "cringeworthy" seems related, though it refers to the event rather than the feeling.
A nice little Mastodon instance. Mild trolling encouraged (keep it local), but not required. Malicious behaviour is not tolerated. Follow Wheaton's law and you'll be fine.