Your missing the subtleties of the argument prerube. Look at my quote of tbird. He says he can't respect picking and choosing of rules. Ok, I'm good with that.
How can I mention that someones Wizards is overweight if I don't see it on a scale. How can I second a foot fault if I don't see it?
You can say someones disc has a number written on it but that doesn't mean anything. A person can write whatever they want on their disc. It's one of the few things a person can legally do to their disc. Maybe their "unique" mark is the number 180 IDK and neither do you. Now, I'm not talking about a person jumping up and down bragging about their disc being overweight. That would be the same as someone telling everybody how much better their Roc flies since the made it a flat top. Well, except a person can't add weight to a disc like they can flatting one. So again, they bought a disc, it said PDGA approved.