For me what's the most annoying is being ganked as a support/healer in the background, hitting "ATTACK X" and because of the terrible quick chat options no one paying attention, so me and the MCH get bursted down while the WAR who keeps dying is spamming "push the crystal" and I can't reply with "Can't push anything if I'm getting destroyed."

The lack of communication tools are so obnoxious. Even worse when a specific person is killing you but they keep spamming "kill the white mage" like you're going to have a chance to kill them when they're stacked on a crystal and the RDM and MCH are left to do what they want. -sigh-