I wish people who read the books would stop mentioning things from the books.
I wish people who don't read the books would start reading them, since
the books are much better.
Alas, our wishes don't always come true.
Yeah, I'll get right on that, after the backlog of 27 science fiction books I have piled up that I'm dying to get to...
I don't want to read the books. Maybe it's odd, but while I like watching fantasy films, I don't like reading fantasy novels. And I'd like to discuss what I watched without "Ooo, it wasn't like that in the books!" or "Oooo, if you read the books you'd know this and that!" It's a bit childish and quite annoying.
Didn't we have separate threads for the books and the series here at one point?
I would say that it's childish and annoying to come to a thread about an adaptation of a book or a book series and start complaining about people who mention the books. "Noooooo don't talk about the books!!!" Why not? Who are you to decide that people aren't allowed to talk about the books?
Now, if someone started spoiling things just to annoy the Unsullied (that's the show-only fans, not the eunuch warriors

), as so many jerks do on Youtube, that would be completely different. But everyone here has been very careful not to spoil anything.
It also strikes me as childish to say: "I don't want to read the books, but I don't want to know any of the in-depth and background information that's provided in the books and that the show doesn't have the time or means to get across". I could understand that if you were motivated by a desire to read the books so you don't want them (sort of) "spoiled", but when it comes with a statement that you don't want to read the books at all, it's a bit annoying.
Finally, most of the book talk was initiated by someone who claimed that it's not necessary to read the books and that the show is better, even though he hasn't read them, based on what some of his friends told him. It's only natural that this is going to provoke discussion and disagreement.
And there is another thread in this forum, but it's not just for the books, it's for the series as a whole, both books and the show - it's called
A Song of Ice and Fire/Game of Thrones Spoiler-filled Discussion. It's for people who have read all the books and/or know what happens (the only spoiler-tagged info is from the released excerpts from the upcoming 6th book, The Winds of Winter), but the show is discussed as much as the books. No one has thrown a fit yet and asked people to stop talking about the show, or started a separate book series thread where talk of the show is forbidden.