Even though she's completely retarded on the social engineering part of cybersec, I think she's still tech literate enough to use a VPN. I think one of the earlier leaks showed that she also had TOR on her desktop?
Maybe, but then if that were the case do you think she'd flip out as hard as she has? To me, her behaviour seems very much like a person who didn't plan this out or even consider the possibility of getting caught. I don't think we're dealing with a Lexus Luther, we're dealing with superman's semi-retarded sidekick whose name I can't even be bothered to google.
Think about it this way. If a person anticipated being caught they'd have their alibi set up in advance, they'd have covered their tracks a bit better. I could be totally wrong about this, but I don't think I am. My gut instincts tell me that ILJ was arrogant enough, and prideful enough to have gone in without a condom on. She's manipulative, she's not cunning or shrewd, she's a gaslighter who doesn't seem to plan ahead at all. Everything about her tells me that she did this without a proxy; plus, logging into most social media is a nightmare with tor/a proxy, and some sites will flat out lock your account, instagram for instance, if you log in from a "suspicious IP"
I bet you dollars to doughnuts there's a lot of wild shit in her twitter DMs, you can find a few weird twitter accounts that she's liked on google despite @kell3osb0rn no longer existing. She's done things on her computer, I'm sure of it, that the university would find morally repugnant, plus; even if she didn't get expelled over it, the idea of being publicly known as that chick who likes writing incest/pedophile fanfiction
should be enough of a threat.
That's just my two cents, that's what my instincts are telling me.