...and why I hate them
I almost forgot about this reason. It's not the warmth, it's not the stress on the ears and surrounding regions,
It's how the sound changes depending on how you wear it. How front, how back, how tilted, how tight. This is before talking about mods such as distancers and sponges and whatnots.
Very irritating if you want your music to be consistent.
One good reason why you tend to see speakers instead of headphones being used for mixing. But there are many good reasons.
Still, you'll always need headphones in the recording studio. For recording purposes.