Things to think about before you call someone "Bad"

[Daibunnie]

And how does one demonstrate that they've listened to your advice? Say someone's not properly doing their rotation, but your suggestion involves changes in a way the underperformer must reorganize their binds and change the order of the buttons they have been pressing in their rotation. They've taken your advice, but they are unable to put it in practice because they need some time to assimilate your suggested changes or rebind their skills/spells. Do you keep calling them bad here too?

Yes you keep calling them bad until they've proven otherwise. Most of the time, you reorganizing your binds/hotbars/skills so you can easily find them on the screen, not for your rotation. If you need to practice, then you should do so on the several training dummies each citystate has. All of these seem like a bunch of excuses on why someone should get carried rather than learning whatever they need.