They are drawing that distinction for a reason. They literally said everyone is everything on the internet. I don't how else you could possibly read that.
I read "everyone is everything on the internet" meaning you can always find someone who is anything, because the internet is just so big and diverse. Not as calling you a liar. Maybe I'm wrong, don't want to put words in their mouth. But that's how I read it.
Maybe you're right, that sounds possible. I would think if that's their intention they wouldn't have written that "everyone" is everything, and would instead say "someone" or something to that effect. At that point I'm probably just overanalyzing though.
That was more a comment on obfuscation of the net. In internet you can just trow adjectives together and somebody will raise their hand, but you can never be sure if they are just putting on a role.
That makes more sense to me. Although, I would contend that people in real life can also just put on a role to varying degrees of success depending on the exact circumstances. Presumably when you said "personally" though, you meant people you already knew well enough to verify their claims to some extent.