Comment by jonchurch_

It is a useful concept, and letting the whispers of the vexillophiles[0] into your head will lead you to see that most flags are well, pretty bad.

CGP Grey has a lot of opinions[1] about this.

[0] https://en.m.wikipedia.org/wiki/Vexillology

[1] https://youtu.be/l4w6808wJcU