Hmm, good question, but basically you're asking for something that doesn't exist.
Core rulebooks get an official, compiled errata. There's no such thing for non-core rulebooks.
Errata for other books is a cooperative effort between official and fans. Generally, if it's posted here, it is considered errata, regardless of who posted it. If it's wrong, it will hopefully get removed/official statement declaring the official answer at some point.
Questions shouldn't be in the errata threads,but sometimes we miss one. (Even the official errata maintenance is volunteer). You can post the errata question here, or if it's a rules question to the rules question threads, or if it's background to ask the writers/developers to get it sorted out (which is where the question should have gone instead of errata threads).