I decided I wanted to use Visual Studio enough that it was worth creating a Microsoft account for that purpose.
Then, I never did anything with the account other than use Visual Studio.
At some point, a message popped up in Visual Studio saying "the pattern of behavior for your account looks fraudulent, so we're disabling it". Visual Studio still worked fine.
I'm not sure what they were hoping would happen. They forced me to create an account I didn't want and had no use for, and then they shut it down for fraud when I didn't use it. OK?