I have never seen so many long postings on a topic. I do think Kim's journey is just fascinating... and is obviously resonating with people on many levels. I've stated before that I like Jill, but I agree with you wholeheartedly Seasoned Refinement that she does have a real mean streak - tacky streak - revealing just how insecure she is, I think.
So there's Kim, early in the house, a new, risky experience... and here to set the tone is someone who will trash you to all the housemates you'll be sharing it with. Isolate an isolated person... that ought to go over well. It sure allowed Jill some power.
And now how the other housemates are all standing there yelling at Kim while she's on the computer... I can only imagine they're reflecting to Kim the denial that existed in her own extended family about what she went through... because the housemates don't get it either!