I can clear alot of quests without Dark Weapons faster than people like Fyrewolf, R-78, Dwn, who use Dark Weapons etc. TJS is an alternate to Dark Flow while Rianov s5 is an alternate to Dark Meteor, can always hunt those while waitin for Xmas.
I wouldn't necessarily say one can be exposed as a scrub, I played with him before and it's basically a mixture of knowing the spawn spots,time,weakness, and itm swapping etc.