No, it doesn't cut down on repetitive question threads. Overwhelmingly, posters are self-absorbed... they have a 'burning' question or comment and their first instinct is to hit "New Thread", not to check to see if it's already been asked/answered/discussed.
Beyond that, once a thread reaches a certain size, people won't look at it anyway because they're too lazy to search for the information. I've made this kind of thread for both of the previous films, as well as earlier versions for Spider-Man 3. It's the same every time.
The other thing is that it's not "official". "Official" implies that it is sanctioned by the Hype! Administration. The only threads that are 'official' are those that one of the administrators (or the moderators on their behalf) create to relay information. This is not that case. Further, considering how much in this thread is not 'FAQs', but conversation, it shouldn't be presented as 'representing the Hype!'.
I'm not saying having an FAQ thread isn't a good idea. It is. It just doesn't need to be stickied, and is not 'official'. We are not 'nazis' who are going to force everyone to post in the same manner. Further, as posters, it's not your place to decide whether or not a thread is a 'valid' question that can have it's own thread, or should be merged with something existing. That's what we moderators are here for.
I realize some of you are simply trying to help (believe me, moderators like to be alerted to problems), but while you have some supporters, you are alienating other posters by trying to make them 'toe the line' that you are deliniating. You need to remember to be tolerant of both other people (and they're posting-style/personality/whatever) as well as tolerant of the board not necessarily looking like you want it too all the time.
Unlike many websites today, the forums are not 'customizable'. You can't make them look just the way you want them to. Think of them like Central Park. You have to learn to be able to do your thing without getting worked up over what other people are doing that may not be something you want being done in the park. If it's things that are detrimental to everyone - like say littering (spamming), attacking others (trolling/flaming) or running naked through the park (posting porn), that's different, but if someone is playing frisbee on an area you think would be better for football, you just have to accept that because it's not your call to make.