WOW IT SEEMS LIKE EVERYONE IS RETARDED xd the people who say tobi is obito can be right because although we don't know for sure, tobi could have a used a jutsu similar to oro's soul transfer (into a different body); If we're going by your logic then that means all he edos kabuto raised are evil or the bodies oro possessed are evil. No it just means oro took over it and with senju dna (zetsu) he rebuilt the body, which is why the zetsu fluid and blood leaked out from his body when he was attacked. It's not obito but tobi in obito's body and that's why he has sharingan. He was probably a powerful ninja before or just another uchiha who needed another body to survive. I'm not against other theories but when people don't see this as a possibility they're being ignorant.