One good case I can think of is Crinacle. Very popular for his audio measurements site and does YouTube.
His Google account got flagged for something suspicious, Google had it shut down and without good explanations. He can't even get help through YouTube support and while the old channel remains, the Google account behind it appears disabled today. The only choice he had was to file a request that lead to nowhere and he basically had to start with a new account and channel.
He explained his experience about it in this video here: https://youtu.be/Jn1b3DztWnc?t=83