I will preface by saying I am a Red Mage main. Yesterday I was doing a high level duty roulette with another Red Mage who was not doing melee at all. I could not decide if it would be bad manners or rude to say something to them about it. What would you do? How badly is it nerfing their damage?
It comes back to people are going to play how they want to play. But I really wanted to say if you want to be a caster, play black mage!