Which will give it a bad reputation among the HN crowd and drive a tiny fraction of global user population away. The rest will happily grant the permissions requested if it gives them access to the latest Angry Birds game, or to Facebook app itself for example...

I mean, how many millions of users does Facebook still have that either have no idea about the impact of sharing their life with it, or don't care, because their social network interaction is essentially locked into the platform?

How many people have been successful at getting their friends & family to switch from FB Messenger or WhatsApp to something like Signal? Some, sure...