I beg to differ. People have claimed that Rule 0 has a long, storied history in D&D from the very beginning; however, as best as I know, the first explicit mention of Rule 0 in any D&D rulebook is in the 3rd Edition D&D PHB, and it doesn't say there what people assume that it says. Moreover, it's absent in a lot of the D&D books that people assume it's present (e.g., D&D 5e)!
The ideology and thinking that informs Rule 0 may have been present from the beginning in some form or another, but Rule 0 has not been. IME, there is a heavy amount of Mandela Effect when it comes to retroactively projecting or remembering the presence of Rule 0 in the early stages of the game. Even then, the governing principle that gets referred to as "Rule 0" is inconsistent between books that have since adopted Rule 0 as a "rule."