That's been canon since the World book. I know because I had to look it up because the tags on Ao3 seemed...unlikely
Literary Buffistas 3: Don't Parse the Blurb, Dear.
There's more to life than watching Buffy the Vampire Slayer! No. Really, there is! Honestly! Here's a place for Buffistas to come and discuss what it is they're reading, their favorite authors and poets. "Geez. Crack a book sometime."
World book?
World of Ice and Fire. It's an in-universe reference book, so there's some unreliable narrator stuff, but it has family trees for everyone (which we have no reason to think are inaccurate apart from Known Lies About Parentage).
It's also a lovely book, apart from the standard issue of pretty much all the women looking like models.
Ah, I passed on that one. I almost passed on this one, but I'm enjoying the mock-historiography a lot.
I'm at the library bookstore for the next hour and a half if anyone is looking for Holiday gifts cheap or something for themselves.
I recently finished T. Kingfisher's "Clockwork Boys" (enjoyed it a lot). I read the acknowledgements section at the end and one of the things she mentions is all the games with gloomy paladins - they infuriated her and gave her some inspiration for the paladin in this book. Her comment about this? Inspiration knocks now and again, but spite bangs on the door all year long.
Heh. Yep. Kingfisher recently released a new book in that universe (Swordheart: [link] Great dialog, fun characters.
I was reading it on the bus and kept breaking into giggles (Clockwork Boys).
And, for your giggling pleasure, the bad sex award quotes.
I read Swordheart this week too! I really enjoyed it, although I kept expecting it to end sooner than it did. Which I think means there's a problem with the pacing. All that said, it's quite amusing. And I definitely intend to read the next 2 in that series.