Board Thread:Naruto Discussions/@comment-29378291-20160802051140/@comment-734582-20160804152201

Ravenlot 27 wrote: A long time ago, I had a though that the Uchiha could have an eye-stealing practice to use Izanagi over and over again via new eyes. Presumably they would just harvest the Sharingan from their dead. They do not necessarily have to steal them.

Besides, izanagi is great to survive otherwise lethal encounters, so obviously it wouldn't be truly spammed. But imagine how different the world would've been if throughout the various battles, someone plucked out an eye and survived a lethal blow.