Yeah but when you looked at what they said, it was all about Estelle not understanding her place in the hierarchy, not understanding social cues. From what I can gather is, she basically never accepted a position as being an unwanted outsider to the main group. When they talk about meepers like Estelle. It's all about people who don't know they aren't wanted to join in. The whole social cues was that she would interject in a conversation or go over to people when they didn't want her.
People in the house formed self important groups and declared themselves in charge, it was there house and people like Estelle and others were not welcome. Were not accepted as being part of the house. Early on Estelle paired with Ryan which means she didn't get in right away on being accepted. So then was left hanging and there was no room for any acceptance. She was just expected to go and she didn't which rapidly made her even more unaccepted. Especially when Sarah went who was accepted. It was seen as Estelle did something wrong by staying. it was Sarah's house to be in, not Estelle's.
The multiple personalities is completely down to they can't figure it out. It's not about her acting crazy or differently. It was all about, she likes rap music, but also likes horses? Two personalities! They phrased it as multiple personalities, but it was just lots of seemingly conflicted interests.
Ben was good at playing the game. It's not a trick of the editing. It's that he presents one way to someones face, pretending he cares. Yet behind their back he will slag them off. He's just a classic manipulator. Remember the guys a pathological liar who will live his life as fictional people. The fact people in the house didn't always see through it doesn't mean he's really a good person. It just means he's good at manipulating people. When he had his big sook about nominations, all he could say is that he thought him being nice one on one made up for his bad side.