(Please note: I’m not affiliated with Spotify in any way. I’m just trying to offer a more balanced view on the matter.)
He then proceeds to explain how the information you choose to share will be used. Read the post in full before rage-quitting Spotify.
And (for now, at least) there’s a lot of personal information that’s still pretty optional: Spotify doesn’t know what type of mobile phone I have, nor my phone number. And there’s a specific setting for sharing my account information with third-party providers which is deselected by default: