There has been some contention recently over the RAW-ness of officially published FAQs for tabletop games. While (as far as I am aware) the D&D 3.5 FAQ is not considered RAW, I'm not aware of any such determination where Pathfinder is concerned. Since the Pathfinder FAQ is written by Paizo and is considered official by the company, can we consider the Pathfinder FAQ to be RAW? If there is a rules clarification in the FAQ that does not conflict with existing rules, is that clarification RAW?
Since this seems to be contentious, please provide answers which are as definitive as possible with officious-looking citations.
Best Answer
Yes, the Pathfinder FAQ is RAW - inasmuch as RAW is definable.
The Pathfinder FAQ is attached to the relevant product pages, it is written by the game designers, and considered authoritative by the community.
and
The Pathfinder community considers the FAQ to be official - it is official in Pathfinder Society and other Pathfinder community sources distinguish between the "official FAQ" and other sources. And that's really the most important point - in general real Pathfinder gamers consider it official and therefore people use it for their games. Considering it "not RAW" based on some legalistic argument is your right, but it will go against the expectations of the vast majority of Pathfinder play groups.
Furthermore - it's helpful and well reasoned, and is the only channel for any clarifications short of errata worked into the books themselves. Because of page numbering, the amount of change/clarification that can go into a printed book is practically minimal, meaning that this is the most reasonable path for all publishers to use to clarify their rules short of an entirely new edition.
Therefore using the FAQ is a perfectly acceptable way to answer a RAW question. If the asker, or any other voters, don't like a specific FAQ ruling or consider it binding, they may vote their conscience of course. As stated in The Rules FAQ And How To Use It,
But it's a fuzzy distinction.
What is "official" or "RAW" really? As a given gaming group, you can allow some but not all books. You can not allow parts of books. You can not allow the FAQ, you can disagree with specific rulings from the FAQ, you can not allow whatever you want. You can say "if it's not printed on paper it doesn't count, I don't care what every single person working at Paizo says or what any other player or GM says." The Paizo staff are very up front about saying it's "your game, your rules" and their interest in having a One True Way From Which You May Not Deviate is minimal.
Trying to adhere to "a RAW interpretation" as if there is a single strict such thing is as logically erroneous as claiming there's "one" fundamentalist literal interpretation of the Bible - that's not how human writing and cognition works. The very question that spawned this was over a rule that pretty much everyone finds to be clear and unambiguous, but there's always one or two people who find the wording to not quite gel with them.
It's the same with the claim that the 3.5e FAQ isn't official. It is useful but imperfect, but some people "don't like it" and therefore exclude it even when it doesn't conflict with the rules. And that's fine.
You can try to make a "RAW but not official" distinction - but why? So you can build CharOpped characters on a board that exploit loopholes in the printed text that have already been clarified in intent by the designers? So that you can "put one over" on someone who hasn't read the FAQ? What exactly is the value of trying to artificially distinguish between "rules the designers wrote here" versus "rules the designers wrote there," except if you don't believe you have discretion over the rules in the first place - which Paizo tells you that you do (see the quote above)? In the end, insistence on some legal-type reading of RAW is not appropriate for Pathfinder by explicit declaration of the Pathfinder role-playing game and its designers.