I, for one, find this exact arrangement of lower extremities quite comfortable. Years of reading crouched in various crooks and nannies + breaststroke swimming have got my joints used to being put in positions that are not conventionally normal for the average human. Having knees that do… well, turn outwards, I guess is the right way to put it – is pretty useful.
Full credit for tag furniture_abuse goes to the incredible @mizgnomer, of course. (I'm awfully sorry if I'm breaching the Tumblr etiquette there, tagging non-mutual, but that blog is a bona fide treasure trove of all things DT-related, especially visual stuff. It was the reason I came to Tumblr at all, for what it's worth.)