Oh, so what you are saying is that they have been wrong and misleading for the past 500 years?
Yeah, projections are always wrong and misleading in some ways and it’s certainly important to point that out – but the Mercator projection has certain properties that are desirable for navigation but also properties that are completely undesirable for how many maps are typically used today. All that navigational stuff? Completely irrelevant for all typical use cases nowadays. Distortions of sizes? Quite relevant for typical use cases.
a) zeteo doesn't seem to be saying it is "good". b) The statement that something is "misleading" is a tense that indicates some kind of objective truth, potentially even an intention; this objectivity is certainly the case once the word "wrong" is used: "wrong" implies a rather strong statement about the map. zateo is thereby providing the context to understand that the map has a purpose, and what that purpose is; I am not certain why your response seems to take offense at that. If you are willing to state something is "wrong" if you are using it incorrectly, then all attempts to demonstrate any form of information ever are "wrong".
Yeah, projections are always wrong and misleading in some ways and it’s certainly important to point that out – but the Mercator projection has certain properties that are desirable for navigation but also properties that are completely undesirable for how many maps are typically used today. All that navigational stuff? Completely irrelevant for all typical use cases nowadays. Distortions of sizes? Quite relevant for typical use cases.
Just because it’s old doesn’t mean it’s good.