I think the 'Active Users' number put out by facebook has to be taken with more than a hint of skepticism.
Facebook user numbers are not independently verified and it is well known that a lot of FB users have multiple profiles.
FB's claimed user numbers are also inflated beyond actual census figures. This has been proven. Facebook is inflating it's user numbers to attract more users and also inflate the share price.
Spotify are niche and their 150m users are music lovers.
FB on the other hand are not niche. They are trying to be everything to everybody.
Spotify customers have a choice. Pay for music in cash or pay for it on FB by trading the details of your private life.
Biting the hand that feeds IT
