I'm still on the fence as to which is more correct, though I do find that tau eliminates a lot of the silly brainfarts I used to make at school.

But I do think this is actually quite important. Mathematics has a few 'special' values including; 0, 1, i, pi/tau and e, special because they turn up everywhere, so it'd be nice to know which of pi and tau is the 'correct' special number.