One of the big turning points for Facebook for them to increase the difficulty of switching was cutting off RSS as a way to syndicate content into Facebook. After that, content had to be manually created in Facebook, instead of automatically imported from a third party source based on standard protocols. This forced people away from their chosen content authoring system into Facebook’s opinionated, inflexible, ad infested walled garden.
Chill out, I already had enough reasons to not use those sites.