Facebook has spent an immense amount of effort on being installed-by-default on most platforms. They also have massive user retention problems right now, with c

Facebook has spent an immense amount of effort on being installed-by-default on most platforms. They also have massive user retention problems right now, with competiting platforms taking app a lot of market share from basically all of their owned platforms, not to mention their image issues. I'm willing to bet that going for a scarcity tactic with their own appstore would be major mistake. Not to mention that it's not much use for most social media platforms, assuming this doesn't allow them to bypass privacy restrictions. The only apps eho would immediately benefit from such a move would be the ones handling payments.