Not at all, I have already provided how it can be useful.
Doesn't make it useful.


I forgot to read the enitre block I was quoiting, here is a proper reply: that you are not allowed to voice your dissenting opinion, does not mean that you have to voice agreement. You can chose to remain silent.
So remaining silent is your substitute for free speech? Great.


Written not by your average North Korean citizen.
But cheerfully supported by each and every one of them.


You wish. Here is a list.
Not a single one of these exceptions involves opinions.