Substandard. It is derogatory and against the democratic as well as human rights. Mouth shut name is intimidating to others and I don’t like this name at all. This kind of insulting web sites are a key to fail a business. Those who ask others to shut their mouths are considered bullies. The mentality to suppress others for example students can produce only employees and not leaders. They can produce crammers and not inventors or social reformers.
Those who try to shut others moth must shut their mouth and learn to respect others.