Haha, I know what you mean mens. Generally in past pros were more educated when it comes to PC. Right now Everything is handed to them. Prime example would be shroud "AMD is better only because it has more cores" I can't even make this shit up mens)).
And yea, that low graphics/ 800x600 resolution stretched bullshit.. apparently theres less input lag when you have low settings? Doesn't matter it's like 000.3 sec, people just read "less input lag". As for low resolution, people want more FPS. 200-300 isn't enough, they want more. Doesn't matter you literally have to get used to it cuz otherwise your eyes hurt and it's one blurry shit. Stretched res makes target bigger and easier to shoot which is partially true - yes, models are bigger but so is everything else. It also makes targets move faster. I played 1280x1000 stretched or something like that for a year and I noticed I missed a lot of ez AWP shots, I was just worse and I thought "fuck I'm getting old". But then I switched back to 1920x1080 and my skill came back.
Tldr: pros are dumb, low Res/low graphic doesn't make better experience, you don't need 500 FPS.