It is an incorrect term allowed.
It is meant to convey validation.
How can any practice be “”allowed or disallowed” when it is undetectable?
Well, chess.com puts a LOT of weight on what people say. All the time chess.com takes people at their word, believes them 100%. No questions asked. We see it quite often when they take action, based on NOTHING other than what they say.
So, if someone says they are using a real board only for duplicating exact game moves, why wouldn't they believe them? They are very diligent about believing other things people say.
That's how.
It is an incorrect term allowed.
It is meant to convey validation.
How can any practice be “”allowed or disallowed” when it is undetectable?