It doesn't necessarily need to be to solve the problem, it can be to force movement on the problem by both forcing awareness of the issue to users and impacting

It doesn't necessarily need to be to solve the problem, it can be to force movement on the problem by both forcing awareness of the issue to users and impacting service overall, which is felt by the service provider. China is not a good example because China both had many reasons for blocking Facebook and already has it blocked, so it's not doing anything new.