"Extreme" Section

So I was looking at the main site to see if there were any updates, and sure enough, a few showed up. One of them was for “seesaw” in the “extreme” category. The only catch is that I’ve never actually seen this extreme section before. Is there something special about it? Do you need some kind of secret handshake or knowledge to get into the “extreme” area? Maybe you need special glasses to spot it? What’s going on here? Why am I being left out?