If your reasoning for not starting a thread is because people have already talked about it you should probably get off the internet, because unfortunately nearly every thread you'll ever find on here has been discussed somewhere, some how. What needs to be considered is that there are new individuals finding and falling in love with the Final Fantasy series all the time. It should be important that we share our love by discussing everything again and again until people stop loving Final Fantasy. Who cares if the more recent titles aren't as popular, that happens with games all the time. I-XII (except XI it's hard to want to play a game where parties are hard to come by in early levels) are hallmarks of story telling that are going to be great plays for years. People are still finding their way to the very first Final Fantasy and are loving it. The main idea of having a fan site or a fan forum about a particular subject is to discuss it regardless of how many times it's been discussed. Sure, necroposting is a shit idea, but starting a new topic on a topic can bring people to reconsider prior theories or perceptions or even cause them to discuss those theories and perceptions with people whose views differ.

There should be a focus on procuring new members, with new ideas, new views and a brand new perception of what Final Fantasy is.

Blaming SE over the fact that people aren't posting on a Final Fantasy forum is like getting pissed at the sun every winter. Try to get the community more involved with itself.