Now Playing + What are you listening to?

So... I can't help notice that in the last 3-4 years almost all the posts in this thread reference & link YouTube music videos. That raises questions.

1. Does everyone who posts YT links watch/ listen to them? Or are they just a convenient way to share the music?
2. Do you find YT sound quality good enough to treat them equally with audio-only streams⁰?
3. Is this because of the added entertainment value of the video, or because YT has somehow managed to wrest higher than expect quality from 128~256 mbps compressed files?

Note -- I also watch/listen to lots of YouTube music, and am often surprised at the SQ of the know <CD quality audio portion, but mainly watching the musicians adds to the enjoyment for me.