Typically people understand being brutally honest as providing a painful to hear but helpful or contributory opinion. When your opinion comes from nothing but

Typically people understand being brutally honest as providing a painful to hear but helpful or contributory opinion. When your opinion comes from nothing but arrogance, ignorance, and a 4chan style need to draw attention to yourself by being deliberately insensitive, then your opinion isn't brutally honest. It's worthless, and you should keep it to yourself.