I bet he partied with poison, so Ill give him a pass. 
I got some black ones, going to wear them under sweats because I always wear sweats on leg day.
But in all seriousness, having worn "long john's" under my sweats when super cold here, I did notice it felt good on leg day. So I kinda understand why they're worn.
But these turds are doing it for fashion, so based on that, fuck'em....
Never have we been in such an era where people are so geared up to train,, but don't train, lol!
I was always asked for "workout clothes" when I worked in supp stores. I mean what the hell is wrong with a cotton t shirt and sweats, how are "workout clothes" needed?
Then again when I was 9, I insisted on a karate outfit for karate classes as no way would I ever get good in normal clothes...