Am I the only one who gets really irked when someone gives criticism on a sheet, and then they just essentially go "Fuck off, you're not the GM/Co-GM"?

This hasn't happened in my threads recently, but I've seen it a few times while lurking other RPS. Like, I'm a guy that thinks that all opinions/criticism matters. No matter who it's from. I don't know, I just find it really obnoxious when someone says that.