This question is a simple and straight-forward one, what differences are there between the Game of Thrones TV series, and the original books? However, since its asking, it's accumulated 1 general answer that touches on a handful of the differences and 18 "me, too" answers. It's a textbook bike shed question, which has been left open, which means it will continue to accumulate more answers, especially since the TV series is ongoing.
I closed this question, which is cut from the same mold, but asking about the ongoing The Hobbit films. At that time, it had 2 "me, too" answers already.
What should be done with this sort of question? They're too broad to be properly answered in a single answer, and people never supply such a thorough answer anyway. Instead they accumulate a bunch of partial answers. From my perspective, this fits the Not Constructive close reason:
As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or specific expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, see the FAQ for guidance.
(emphasis mine)
I didn't close the Game of Thrones question since that one has seen extensive attention, and mods at the time found it acceptable. But I think these types of questions are just too broad for a single answer to act as a definitive response to the question. Can these questions be edited to become more constrained and answerable? Should they be closed? What other ideas does the community have on these? Are they not viewed as a problem?