`:::What an intriguing claim!  Nope  we can not ever use opinions as ``fact`` in Wikipedia's voice.  Where a news source specifically attributes opinions to specific persons, that attribution is the ``fact`` and the opinion remains opinion.    Is this quite clear?   ``George Gnarph called Wilbur Wharf a 'raving lunatic'`` is an opinion - we can not use it to say ``William Wharf is a raving lunatic`` or make any such implication that ``William Wharf is widely viewed as a 'raving lunatic'``.     `