Re: Obito possesses the body of Zetsu.
It also looked like that his left side was leaking BLOOD not goo. Even if he doesn't fall from this wound, it is possible to harm him. I looked at that part as a huge metaphor, but with it's impact made physical via genjutsu/kamui dimension control.
We have no idea how good Obito is at genjutsu, and we also don't know if he can control the dimension itself. We are also assuming that Kishi isn't such a horrible writer that he would give Obito (who is OP to begin with now) a FULL Zetsu body.
All we can do is wait for 3-4 days to actually see what's up with this, if that will even be the focus of the next release. We don't know, we are only assuming. We have evidence on both sides of this... but we've had evidence for other things in the manga and it turned out opposite.
I say we leave this topic alone now since I've seen enough of them and it's getting a bit to the point of repeating shit we've already looked into, have seen posted, and have already assumed ourselves.
Not saying your points are wrong and that he isn't full Zetsu, he may very well be. It's just that half of us are hoping that Kishi didn't do this