Board Thread:Theories and Speculation/@comment-26358288-20150630121218/@comment-5273810-20150630211148

QuakingStar wrote: No, because if he wanted to harm somebody mentally with Tsukuyomi and make it unbreakable they would be mentally harmed like Kakashi and Sasuke were in P1 and unable to break out, he simply made his Tsukuyomi weaker hence it had no perception time control on it, even against Sasuke in P2 there was no time control perception change, Itachi simply wanted to push Sasuke to HIS limit, therefor he would lose the Cursed Seal, Itachi knew he was going to die whether he fought Sasuke or not, so he had to do all this. In both the cases you mentioned the people involved(Sasuke and Kakashi) were untrained to fight Itachi's ocular prowess. The only person who fought Itachi who actually knew how to fight him was Might Guy which I think speaks for itself.

One could very well say Itachi didn't hold back on the Genjutsu prowess since after all it is mostly nonlethal(unless you want it to be of course). Black Zetsu made a comment that their genjutsu abilities were on par with each other and that a Genjutsu fight was now off the table. This is coming from someone who sensed something was wrong with the fight(making comments about dodging the Shuriken etc.)

Again its unprovable either way, it is kinda left open for interpretation. Like I said, people can also argue about Itachi's comments during Konoha Crush about Jiraya and one could argue that in fact Itachi was lying through his teeth. But once again you can counter-argue that he wasn't. Just because someone wants to avoid a fight or lose a fight doesn't mean they can't say the truth here and there.