Board Thread:Naruto Discussions/@comment-27883716-20160228133805/@comment-26369387-20160301210041

^Except you know, the whole Zetsufication thing wolud end it pretty quickly.

Also, even if Madara didn't know about it, the fact is that people are mercy of whims of person who likes to bite himself for excitement. Eventually, since there's nothing left to do anymore, Madara would get bored and abuse his powers in manner that would affect the people trapped within IT. Something like, "Since I gave you 'paradise', I have every right to do whatever I want with you."

So you would want be at mercy of known maniac who thinks himself as a god? Yeah, didn't thought so.