Hey, at least they get to look cool while oblivious, gobbling, gabbing and decorating. This has got to be an extrovert inversion of the INTJ/Aspie type, where never speaking one's mind is normal rather than challenging and vocalizing always trumps reflective inner dialogue. Leap first, look later. Freaks.
Normal folks are socially adaptive. They'll benefit by speaking their minds only when the setting and audience are right. The hipster never does and is eventually loathed, the Aspie always does and is often foolish for doing so.