It hasn't been too long since a OneDrive user was locked out of "30 years worth of photos and work" for seemingly no reason, paired with an apparent lack of support from Microsoft, as they called the company a "Kafkaesque black hole". It highlighted the dangers of relying solely on one cloud-based system, particularly for backups, and stood as a disappointing example of how interpreted violations of any terms of use agreement can lead to entire accounts being lost.
Recently, Russian developer Mike Kaganski, part of the LibreOffice development team working on the open-source and free alternative to Microsoft Office, was similarly struck with a baffling and unexpected ban, locking them out of their Microsoft account after sending a harmless email containing little more than notes on code bugs and potential fixes (via Neowin).
