Under "spookism" type belief, it does not matter if the government or a smaller entity is the one to "shut you up." Instead, it is the mere fact that anyone is trying to limit your freedom to speak.
The fact that any other entity is trying to control what you say, whether you can say it, or how you say it, is the fundamental fact. Who in particular does this does not matter; nor does the platform it happens on matter. The foundational platform is "reality."
It only matters that an entity, be it government, man, or machine, is controlling your ability to speak.