There is a lot of sort of dumb stuff going on, like many that think war with Russia is a good idea  but I think it is better not to comment on it because Rav Nahman said אף על פי שתוכחה היא דבר גדול ומוטל על כל אחד להוכיח את חברו כשרואה בו דבר שאינו הגון, אם כל זה לאו כל אדם ראוי להוכיח  Even though rebuke is a great thing and it is an obligation on everyone to rebuke their fellow man when they see in him something not proper, still, not everyone is fit to rebuke.

[This seems to be a difference between Rav Nahman and the Gra. To Rav Nahman the emphasis is to say nothing unless one is sure to help the situation by means of rebuke. To the Gra one at least has to say one time his or her opinion that what the other s doing is wrong.