Here is what is wrong with the "anti-tauist" rants: They take a bunch of people who already learned the subject and presume that those people are experts a tea

Here is what is wrong with the "anti-tauist" rants: They take a bunch of people who already learned the subject and presume that those people are experts a teaching said subject. These people always assume that the way they learned is best, because "dammit, it was good enough for me". They just can't see any other way. Sadly, this ignores all of the other people, who may be capable of understanding and properly using the subject if presented in a different way. For pedagogical purposes, Tau is worth a shot, if it helps some people get to the point that they realize "for the math the constant doesn't matter". Just like anything else: try to teach broadly, and let the experts do the adjusting, not make the novice bend to the expert's will or be damned.