Truth in whose eyes? I believe what Bannon said is false. But at no point has any social media standard been "you must tell the truth", even if we just pretend

Truth in whose eyes? I believe what Bannon said is false. But at no point has any social media standard been "you must tell the truth", even if we just pretend there is some objective truth that everyone knows. Easily a hundred million Americans have watched Trump lie AND be lied about. But the issue here is that Bannon is being disappeared from YouTube for what, exactly? Speaking an untruth?