> Buying one if you don't have a facebook account is even worse, you have to create one which they inevitably decide is a bot and then ban it.

Twitter does a similar thing: they'll lock your account and demand your real phone number before you can get access again. Luckily it really was a throwaway-account in my case that I created for a random mobile game, but it's still a horrible practice - same with Microsoft's email service, which also may lock you out one day until you enter and verify your phone number.