::I think the salient point here is that the rationale underlying WP:SELFSOURCE is exactly the reason that WP:RSOPINION represents part of the RS content guideline (and not an exception to it). A third party statement regarding its own opinion is reliable as a source of information about itself because its opinion is its own. That doesn't mean that any source can be used simply because it has an opinion, but the reason to exclude an opinion source doesn't rest on reliability because there can really be no reasonable doubt that a published opinion differs from the true opinion of the publishing source. If a source is unreliable for factual matters but it is a contextually notable source then it's fine to be cited in a due manner and along with inline attribution for its opinions anyway. -