It is, but it isn't.
One could argue that someone, let's say Bob, happened to overhear some guy named Paul needing to do exactly this. He overheard it at a bar.
Bob then thought "oh, well if it's someone really VIP, this could make for some good lulz with my efriends. Who does Paul work for that is _really_ VIP? Let me Google Paul."
"Oh, here's his email address... stonetear@gmail.com. I wonder if he's on reddit. ... Guess not. Let's make a post that's pretty obviously incriminating."
I think that'd be the first argument made, at least. IANAL, but I do have some courtroom experience.
An IP is also not a person, https://torrentfreak.com/ip-address-not-person-140324/