If your economy is going t*ts up, if your country is going down the pan, if somebody takes your parking spot, do you say nothing? NO YOU DONT.
Everyone has the right to say what they feel, this is called freedom of speech. Without that freedom to say what you think, then we all might as well bury our heads in the sand.
I myself am guilty of it, but im trying my best to stop. Never try to stop a person from saying what they feel, because speaking up is the only way to get your voice heard. Be good.