Board Thread:General Discussion/@comment-24494906-20150912191702/@comment-26841482-20150913141624

Yeah, theories are absolutely fine. As long as you don't base them on spoilers from unreleased chapters. I mean, if you have seen a chapter's spoilers and discuss theories based on it on any page (other than that chapter's page), then it's a problem.

So, theories, in general, are fine.