Not knowing *anything* about Game of Thrones I don't even know how to pronounce the names mentioned . So I think for those unfamiliar with the show they will seem very "out there", but if it's meaningful to the parents then why not. I think names have really strayed far enough from the traditional the last couple decades or so that only the most outlandish names are surprising anymore. I really think kids aren't going to grow up having too much trouble with nontraditional names or spellings because it's unlikely they'll be the only one in their class (or workplace as adults) who has to tell people how to pronounce and/or spell their name (ha, my name is Kelly Ann Owens and I'm forever having to spell it...not complaining though since my maiden name was Bierschbach ).
Uncommon names are becoming commonplace which means they'll gradually become more and more socially acceptable. Even if they don't, I remember being envious of kids in my school had "cool" names and felt my name was boring, lol (there were 5 Kelly/Kelli/Kelleys in my grade).
I've only seen two episodes. (The violence was a little too graphic/stressful for me.) From that, all that i see is the blond hair and her getting raped by her new husband. Maybe i'd have to see more to think something different but unfortunately, that's what would come to mind if i met someone with her name.
It doesn't surprise me at all that this name is being used. Didn't we have a thread a while ago about names from The Hunger Games? Call me crazy, but Katniss is a guilty pleasure name for me. I love it, and half hate that the author found it and made it so dang popular making it impossible for me to use now. lol