Not to be a smartass, but do you look at the posted characters? Because Josh, you're missing the rather important fact that she's of the Scarred Witch archetype. Constitution is her casting ability, instead of Intelligence. Because of that, Prehensile hair is controlled by CON. She's Single Attribute Dependent. Which is awesome. I stated that when she was first built and posted on the forum... And as I said previously, she's build around the whole prehensile hair shtick. That is why her attributes are such as they are. A 10 strength doesn't really matter, or a 10 intelligence either, when all her witch powers are controlled by CON stat. That is why when she rages, it's a bonus to CON, not STR (though I could choose either).
From the PRD:
Scarred Witch Doctor (Witch)
The scarred witch doctor draws power from her ability to endure pain and suffering. She mutilates her own flesh, inflicting horrific scars, in order to attract the attention of her patron. Rather than call forth a familiar, she creates a repulsive fetish mask that she uses as a repository for her power. A scarred witch doctor has the following class features.
Constitution Dependent: A scarred witch doctor uses Constitution instead of Intelligence when determining the highest level of spells she can cast, her spell save DCs, number of spells known at 1st level, and any effects of her hexes normally determined by her Intelligence.Prehensile Hair is a Hex (which you already posted) so CON affects that too.
She's a human, but took the Racial Heritage Feat: Orc so that she could meet the prerequisite for Scarred Witch Doctor.
Racial Heritage
The blood of a non-human ancestor flows in your veins.
Prerequisite: Human.
Benefit: Choose another humanoid race. You count as both human and that race for any effects related to race. For example, if you choose dwarf, you are considered both a human and a dwarf for the purpose of taking traits, feats, how spells and magic items affect you, and so on.
Hey, I understand the confusion. She's optimized up the wazoo. I think it's great! But don't blame me, blame PF for allowing these type of shenanigan characters. It's all Rules As Written too. And she doesn't even have Mythic Vital Strike!
Oh and the +8 of her attack? It is simply: +3 BAB, +5 CON Modifier, and then the +4 CON for raging gives another +2 to her CON mod. So +3 +5 (or combined: +8 ) and the raging +2 to attack. Now throwing a body is a missle/ranged attack so you can say it's DEX-based, I suppose, though technically she is using her hair, so whatever.