Another factor is the quality of the recording itself. Really good recording quality songs sounds great on any system.
The audio Youtubers have minimal views anyway. It's kind of impressive they spend so much time doing these videos and yet they don't make any money from the videos clearly.
And then you have the backend which is people signing up for additional services for special care treatment Via patreon style marketing efforts which can be rewarding but this is difficult. Seems to be a cesspool and I wish they just spend time speaking about the quality and characteristics of the equipment versus the dribble.
Also the touting of 100 Thousand dollar systems, $300,000 speakers, $30,000 power cords is absolutely ridiculous it hurts the Industry.