It is most evident when you look at the “Fallout 4 Speculations, Suggestions & Ideas” topic we are already on the 29th part. With all that information a lot of good ideas are being lost in the chaff (that’s if the developers read them) and it’s also very hard to debate an Idea when other unrelated ideas are being posted at the same time in the same topic. It would also make it easier for the developers to gauge if a concept will be well received.

There will be no such thing, at least not until the game officially exists.

There was no Skyrim General forum until the game was announced and by that time the “The Elder Scrolls V Speculations, Suggestions & Ideas” had reached about 200 threads.