Even by WoW standards, Aavryn of <One Percent> on Kul Tiras might have too much time on her hands. Sure, anyone can grab items from all eight holidays. (For those of you playing along at home, she's got an Elune Stone from the Lunar Festival, a Blue Brewfest Stein from Brewfest, a Sleepy Willy pet from Children's Week, a Hallowed Helm from Hallow's End, a Romantic Picnic Basket from Love is In the Air, a Brazier of Dancing Flames from the Midsummer Fire Festival, an Egg Basket from Noblegarden, and the Red Winter Clothing from Winter Veil.)
But how many people would find a way to get all eight into one screenshot? Or spend two hours trying to find the perfect lighting, synchronizing the cooldowns, and then waiting for people to stop running into the shot? And how painful must it be to get all this done and still be one achievement short of your Violet Proto-Drake?