Board Thread:Naruto Discussions/@comment-26127155-20150609131529/@comment-25093611-20150609135828

i can answer for myself:

It.Wasnt.Shown!!!!!

unlike ninjutsu and taijutsu who had great effects genjutsu was rarely used, but if it was used by high-lvl shinobi than it was really useful..

we simply lack shinobis like itachi who spammed it like nobody business ^_^

this is actually similar with kido from bleach, some chars are using it for some pretty badass high-lvl effects and others are only using the "ordinary" shinigami powers, ichigo and naruto are the same in that perspective, never bothered to leanr the dilicate high-class things (since they had enough energy for whatever they want XD) ^_^