That's true! Not just China and Hongkong though. It's true to any government that seeks to control its people's fundamental rights.
Even the current administration here in the Philippines doesn't like any kind of dissent and criticism from its people. They employ a lot of tactics to drown legitimate concerns. Troll farms is one of them.
The reason why I was invested in this post is because the Philippine government is also guilty of its attack to free speech. I will always be the one to demand transparency and accountability so I always air out criticisms whenever necessary.