If you guys can not hear a difference between tracks on YouTube I'm thinking its you and your bias, as I can readily hear a difference. Specially when the poster takes the time to do a proper setup using good mic's etc. sure its compressed some but not always compressed more then red book. The way some of you go on about it you'd think a CD wasn't good enough to evaluate a track, only hi rez files allowed.
It may not be as good as being in the room but I can hear enough of a difference that its helpful, specially if the youtuber makes many recording in the same room to compare with.
Maybe put your phone down and stream YouTube through a proper streaming device using a quality DAC.