Originally Posted by Kaylore
It is not. Everyone here has been pretty good about keeping it about the show and speaking in enough generalities about the books that you'll be fine. That said, if you haven't seen the show and you don't want it spoiled, do NOT read this thread.
Agreed - the stuff about Jon's bloodline is still in the realm of online conspiracy theory. GRRM hasn't tipped his hand yet in this regard.