Okay, I finally had the stomach to read these pages through and this is the definitive affirmation of what we thought: Greg is a pedophile, because there is no other explanation to this mess.
No sane adult would say that it's completely normal for a 16yo to find a 12yo attractive, because 12yo look like children, they are pudgy, and have weird long limbs, their voice is changing and keeps breaking, and even when they are simply standing they look awkward as fuck.
16yo girls are hired to be 12yos babysitters, and they see them as children. Never in my life I've ever talked to a girl of that age that thought a child was sexy or even worth her time. Girls that age usually run after guys older than them, not kids that could be their little brothers.
This actually sheds a lot of light on how much in danger his children are: if him and Taylor were to get a babysitter for whatever reason, and said babysitter would abuse the kids, Greg would probably find it sexy and say that the children actually wanted it, that they deserved it because they were dressed up 'too sexy' or other rapist shit.
Not sure if this has been said or those who've recently posted about this are just not aware, but this incident happened to Greg when he was 11 and the girl was 15, allegedly. He's talked about it in a few videos over the years. Julia distanced herself from Greg over the years, and he assumes it's because Julia was very ashamed that she, presumably a high schooler at the time, essentially molested a middle schooler.
Greg, however, unsurprisingly is unbothered by this experience and continues to cherish it to this day. He seemingly hasn't the slightest understanding of why it's predatory.
For reference, here are some screenshots from Life of Onion about Julia. If you want to check it out for more references, there are links and more info about journals Greg kept in 2005 on the site.
So, 15-year-old Julia did some typical predatory things like telling the much younger victim how mature they are and how they are essentially "equals" ("heart of a 15 year old"), continued to pursue 11-year-old an sexually inexperienced Greg until that super special night and morning, Greg leaves and returns the following summer at age 12 to find that Julia, now presumably 16, is with Michael, a friend who is allegedly 1 year younger than Greg and therefore 11 years old.
This is just another reason/example that Greg doesn't "get" power dynamics in predatory behavior. He doesn't see that his behaviors were heavily influenced and guided the older and more experienced girl, because the only "romantic" relationships he had up until that point were essentially formed by passing a note to someone you like in class, barely talking besides an awkward "hi," etc., and maybe awkwardly putting your arm around a girl at a school dance.
Just because Greg knew to "finger bang" her without being told means jack shit, nor does his enjoyment of it mean it was okay. I'm sure he saw porn and shit, and preteens start to become curious and interested in this stuff.
Greg wouldn't have gotten to that point had Julia not been the one who guided everything beyond Greg's experience at that time. Greg hadn't done, and wouldn't have done, anything like that with girls his own age because his "relationships" up until then began/progressed/ended relative to their shared experience and understanding of these things.
No wonder Greg asserts shit about how mature 17-18 year olds are, though I'm sure he believes 15 and 16 year olds can also be equals to late-20s+ year olds (because somehow 17-year-old Sarah was so vastly different than 18-year-old Sarah... Must be allllll of that brain development and those life experiences and countless ways her actions reflected that mature mindset just before becoming 100% legal).
He was told, at age 11, some unquantifiable abstract shit that he was "older" on the inside despite being everything else about him up until that point being relatively on par for his age (for the most part), by someone he'd trust to make that determination because of her more advanced position relative to his lower position. Otherwise Greg wouldn't have assumed that about himself and took it to heart (like he did when Julia said it) because he had no fucking concept of being a 15-year-old.
Now he asserts stupid shit about teens' maturity and being equals to or more mature than adults, gravitates towards teen girls and vehemently defends any association with them, and goes as far as being a total asshole to Sarah just before she turned 18 because he was worried about her potential attraction to him. Hell, he now says he purposefully is an asshole to any underaged girl to prevent them from developing feelings for him.
He's so fucked in the head, and what that girl allegedly did to him and possibly their friend Michael is disgusting whether he tries to romanticize it or not.