Yeah, the forums are an echo chamber, in multiple areas. You'll see the same people posting about the same things often, and threads will skyrocket in pages even though it's the same 4-7 people talking (and often arguing). Look at some of the threads like the Dark Knight Megathread, the thread about deleting SCH actions, etc. It's often the exact same people having a discussion, though that's often because people prefer discord and reddit these days over forums.