alt Hacker NewsDoesn't really fulfill the same niche Soundcloud does. Most content on SC is non-commercial or just simply not available on any streaming service.
Lidarr relies on people ripping this music, and also adding the metadata to Musicbrainz, which just simply isn't going to happen for most SC uploads.
I thought for a moment while reading these comments that somehow SC had completely changed in terms of content and type of user. People seem to think it's a Spotify-like or something. I consumed essentially audio shitposts and DJ mix sets on SC, stuff that you're not going to find published in a pirateable form...