I hate this "christmas noob" term, tbh. I think you're a decent player if you just do well and don't ignore your teammates when they're trying to help you. For (bad) example: Phogoth strike, both teammates ~1000 grimoire score and at fphogoth they just stayed in that cheesing room. They didn't care that I was pointing at them and shooting at them and then shooting on the floor outside. The result were witches and knight mayors spawning in front of the room and doubling the time needed to run through that strike. (good) example: Devils lair, at the boss one of the teammates kept hiding behind the entering door and just came out to shoot a few bullets and get back there again. I did the same like above, but he understood what I was trying to tell and so he got out there and we killed the boss without problems. I Think that the most of the newcomers just think that strikes are very hard (like a 3-person-raid) and immediately use the "cheesy" nightfall strategies without trying it in any other way.