the observers or the omitters thereof should not mutually censure each other

Don't be so apodictic! You haven't considered several facets of the question.

Saying that obscenity is indecent and then saying something is indecent if it's obscene is a circular definition.

Described as 'a sabre-toothed growler on Labour's awkward bench' (Robert Hardman), he sits alongside Dennis Skinner a mere arm's length from the Chief Whip, whom, in opposition during the 1992 Parliament, he defied 52 times, […]