I left out details that seemed obvious (for example, I didn't really bother to explain how to create/edit/delete them; I just gave the URL for that and noted that clients could do it) or petty (for example, that you might have to log out of your client and back into it for it to acknowledge new friends groups), and I omitted the security notes from the bottom of the relevant FAQ because, though not necessarily obvious, they could be infered from what I wrote.
I'm not sure how much of this should be in the FAQ, but a good chunk of it is not. If there's anyone with the patience to read what I wrote, what do you think? (Also please note if you think anything I wrote is incorrect or unclear, or if you know anything about what I said I was unsure about. Thanks!)