Can you point to some?
Full disclosue, I *have* read the books and therefore mostly refrain from posting here, and *nothing* about stuff outside the show.
Edit: never mind, I just easily found an example myself. Yes, pathetic.
Did you PM a mod?
Book readers who are NOT being jerks should be on patrol. They'd be able to tell whether someone is genuinely speculating or """"""speculating""""""" when they make comments.
If they've posted in the book and spoiler threads before, that'd be a good sign.
Another good sign is whether someone makes a comment that uses oddly specific wording that makes no contextual sense at the time. I.e. Robb Stark is really losing his head in this war. We know now that obviously means the Karstarks, but still...
It's not a witch hunt, it's stopping people from deliberately being assholes.