I refuse to care about this. A single dash is all I will ever use. I see no possible reason to use the other two.
That's the comment I was looking for to rally behind. I use the same character `-` for all purposes: minus, hyphen, em/en dash. It's easy to type and it makes practically no difference in meaning or legibility. I refuse to waste my time differentiating between multiple variations of a short horizontal line with a few pixels more or less. Ain't nobody got time for that.