I've noticed a lot of bad players recently myself. Went into an AK run with a BRD who didn't use DoTs and a MNK who didn't use positioning. After 3 wipes on Demon Wall (no, I'm not joking, I wish I was), the PAL initiated an abandon duty, which I had to agree with. Later ran another place with a DRG who didn't use his DoTs or Heavy Thrust, and a BLM who didn't Flare at all and continually used Blizzard spells, no fire. How do these people even get to endgame?