Board Thread:Versus Debates/@comment-26636534-20170619154549/@comment-5085906-20170626215909

@Thekillman

I think the issues with the Sharingan began much earlier than the 4th Shinobi World War, though. It was at first supposed to be a dojutsu on par with the Byakugan and then as the series progressed, more and more abilities got added to the dojutsu's repertoire and at points, some versions of Sharingan just blatantly began to disregard the rules that Kishimoto had established.

I'm not asking for a wall of text that's supposed to provide exposition for everything related to the Sharingan (we get enough of those as it is), but really how much space would a simple clarification regarding Itachi's sharingan would take? In the anime's Itachi Shinden filler episode, we get to see Itachi use the sort of delayed activation that he used against Deidara when he kills two ANBU shinobi sent by Danzo. What's different about this case is that in the filler, Itachi actually marks them with the genjutsu a few days prior to that moment. If Kishimoto had actually done something like that in the canon, maybe we wouldn't have had fans incorrectly assume that Itachi can use genjutsu without making eye contact.