Every now and then I'll get into a CT run with what would seem like a group of trolls in seasonal gear, but it's obvious they're just seeing how far they can take it so they can get some screenshots to brag with (omg these dungeons are so easy we did it in such and such gear. So pro.). We literally had groups standing outside of the boss areas until they dressed in real gear. I'm all for laughs but as mentioned earlier, the novelty dissipates quickly.