There is plenty to talk about Jill , her fans just can't handle it.
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it is also not as simple as, "What you see is what you get". Because you see a very different Jill in the first 4 or 5 episode, then what you see in ep 6,7,8. And it is not even Natural, like with, Sage, or even Quinn, and hell Lilly, based on ep 8. I mean it in a way, that you get to know them better, and its natural evolution of them being more than what they might appear in first.
You don't see Jill as an immature, naive, legit dumb, not suited for life, person. And then she take a 180 turn In episode 6. And the fact that 3 years, 8 episode, and Her so called popularity never changed, is the proof, that it is all about the Oppai, nothing more.
Unlike Josy and Maya for example, because most of them give up on them after episode 4. We were not even half way.