I do not mind this. It is indeed possible that the cause of the ban originated from some other source as from entered personal details and sequence of actions.
It actually motivates me to create another experiment.
While this statement will be really buried, it reminds me that we still should be thankful that we can somewhat conceal our identity as a private enterprise can be much more unforgiving that the state.
I then went to Youtube and uploaded a video.
I signed out, then in again. Google asked for a number and recovery email, but let me press "Done" without providing one.
I'll sign in later from a different IP, and see what happens.
Edit: I've come across [1], which says a phone number is required to upload videos longer than 15 minutes to YouTube, or in some cases to upload anything.
Also, I didn't say anything about leading reason.
No, it's a hasty generalization[1] where personal experience is assumed to match other cases.
Of course Google could have simply stated the reason for the suspension clearly, if they weren't so reliably opaque in support and service management issues,