Your FAQ is a contract with users: This is what we accept, this is what we don't. At the moment, it doesn't address the issue of WP.com and WP.org.
I understand that the status of Wordpress.com questions is currently vague. However, I see that many of these dotcom questions get migrated or closed, so the site is effectively rejecting them. And while the opinions on that meta thread are spread out, it looks like the community wants to exclude them. Well and good, but if this site is going to continue doing this, I'd ask that you please update the FAQ to indicate the ambiguity.
As it stands, when the site rejects such a question, it comes across as cliqueish and exclusionary to new Wordpress.com users who may not even be aware of the difference between .com and .org. Indicating this in the FAQ might help avoid confusion.
Hakre's meta answer is an excellently worded clear explanation of the issues involved, and shortening it down could serve as a template for some FAQ text. Here's my attempt at an FAQ addition, based on that meta post:
Wordpress comes in the self-hosted variety (referred to as Wordpress.org) and the free, online web version (Wordpress.com). If you haven't set Wordpress up on server space, you're probably using Wordpress.com. Users of Wordpress.com have very limit interaction with the software compared to standard wordpress users. These questions can be better answered at Web Applications or on the Wordpress.com support site.