It absolutely wasn't. It was not pertinent to the original question, it did not raise new paths of inquiry, and it was phrased in a condescending way.
Actually, it makes a couple of false, misleading, and ignorant statements (wrong dimensions, discussing resolution in linear units, not accounting for film's resolution being a fixed physical property not affected by aspect ratio), and it wasn't obvious to OP.
Explained in detail by Daniel Klockenkemper.