Interesting to see how my post was interpreted.
FWIW I did not mean to insinuate rank is lost or revoked.
It had more to do with ones personal mindset.
With all due respect, then my answer is simple. If you have an opinion that a person is no longer a BB because X, Y, or Z, then that is your opinion. Matters to you, but otherwise completely worthless because your opinion (or mine) has no authority, no power, no ability to change facts; presuming we are not the ones who issued the BB in the first place.
One might say "What right has so-and-so to call himself a Black Belt these days?"
One might answer "What right have you to ask the question?"
Personal mindset and a buck fifty will buy you a cup of coffee. Well, it will where I buy coffee, anyway.