> While we are at it we should point out Spotify has no clear ways to export your listening history, playlists etc that you can easily recreate on other portals

> While we are at it we should point out Spotify has no clear ways to export your listening history, playlists etc that you can easily recreate on other portals. This is absolutely not true. You can export all of your data from Account -> Privacy pane, you can also use the public APIs to extract all of your playlists, library, podcasts, etc. data: developer.spotify.net If you want to develop an app that does the migration for you you're absolutely free to do so, use the other portals/platforms APIs to recreate them.