I want to be a Ninja but..

[Zyst]

Thus, you, as a NIN, have very "Competent" damage. As in you can "Compete" with the other jobs. When you add your utility the damage increase seen by other players can be enough to bridge the gap, or in rare scenarios be enough to tip it over to be an advantage.

Now back to the question:

What's "incompetent damage"?

What would be incompetent would be different from person to person, it's an abstract concept that I don't hold any particular definition for, as opposed to competent damage which I explain above.

But if I had to say if a monk were to be doing (.40 * X) damage in the same gear as a theoretical identical monk doing (X) damage, I would be inclined to say the first monk is "Incompetent", and by comparison, your damage as a NIN of (.93 * X) is very competent.

[Zyst]

Now lets say you enter dungeon finder, and most people do not care to find their most optimum rotation or anything of the sort, and play casually, which is completely fine. You'll find that a lot of players will cap their damage below their theoretical potential. You, who are playing closer to your theoretical potential are doing significantly more damage. Thus, your damage is more than competent, it's: The best in this current curve.

NIN, theoretically, doesn't do the most damage. But if you are a good player and strive for improvement you will find yourself doing the most damage extremely often regardless.

END