[estranhosidade]

I think many services nowadays end up offering a worst user experience in the name of "simplifying their interface" (I imagine this must be the only reason why Spotify wouldn't add this option).

Not only on this case but, for instance, it would be nice if spotify easily allowed someone to import their playlist from other services, or even from some text playlist. But they don't add these options. And I don't understand why.

Like, technically I assume it make sense for them to make as much of a pain in the ass to EXPORT your spotify playlists to other services, but they should make as easy as possible for the user to bring their favorite playlists and yadda yadda to Spotify.