It's the same. It's not "who is?", it's "have you a license to do it?". If you have a license to reshare spice girls works, and you want to use funkwhale, well, you can.

Nine Inch Nails have CC licensed albums. So "being famous" and "music that is under a CC license" is not mutually exclusive...

I don’t think there is anyone on HN confused on that. I’m sorry if it slipped beyond you but I’m specifically talking music people don’t have permission or the rights to sharing.

The problem was with how you phrased your original comment. You implied that it (the tool?) is not legal because it offers "the ability to share your music online". This is why people started replying in this sense.

It depends on who you are sharing with and the context.

I could setup a server with my music collection and give access to my friends. That is fair-use.