I do it weirdly. Basically on how a song feels, I can't tell genres, and honestly, I don't care.
Anyway, these folders are the result:
Music out of directory
Music type 1 Mk1
Music type 1 Mk2
Music type 1 Mk3
Music type 1 Mk4 S1
Music type 1 Mk4 S2
Music type 1 Mk4 S3
Music type 1 Mk5
Music type 2 Mk1
Music type 2 Mk2
Music type 3
Music type 4 C
Music type 4 M
Music type 5
Music type 6
Music type 7
Music type 8
Music type 9
Music type 10
Music type 11
Music type 12
Music type 13
The same reason Netflix was initially so popular, convenience. Almost every song you could think of is instantly available at your fingertips, all in one convenient location
The only reasons I still use Spotify is because I get it from a family subscription that my mother pays, so it doesn't cost me anything. And it would be a big pain in the ass to get all my playlists on a local drive, changing to another streaming service would make it easier but then why change anything from how it is right now?
If you ever want to go away from Spotify, use spotube. You can even download all your stuff(just don't download everything at once because you can get banned from YouTube).
What do you mean? Mine is organized by artist, I feel that's pretty standard. I organize my Playlists myself and the blends always turn out good as well and those are entirely voluntary.
There's your problem. You don't believe that a popular song is inherently better. That disqualifies Spotify from viable music aggregators because it only has the popular stuff.