https://www.techdirt.com/articles/20210108/15473846022/content-moderation-case-study-soundcloud-combats-piracy-giving-universal-music-power-to-remove-uploads-2014.shtml

Summary: Any site that relies on uploaded content has to be wary of hosting pirated content. In most cases, allegedly infringing content is removed at the request of rights holders following the normal DMCA takedown process. A DMCA notice is issued and the site responds by removing the content and -- in some cases -- allowing the uploader to challenge the takedown.

SoundCloud has positioned itself as a host of user-created audio content, relying on content creators to upload original works. But, like any content hosting site, it often found itself hosting infringing content not created by the uploader.