I guess it comes and goes now since I only ran into it once recently, but the entirety of RATMs discog will appear as labelled with that content warning that you need to manually confirm and it can make playing music let alone an album from them a chore, reuploaded a copy of their discog onto the private library to get around it but sometimes I'll forget, queue an official upload and be like "oh yeah they still haven't fixed this" when everything pauses. Other than that YTM is endgame music streaming, the YT community as the backend for streaming music, the actual proper releases and the ability to manage a private library is just perfect.