I think they put her in the box of "CRAZY BPD CHICK!" and try to trigger her based on that, but she really does not have a typical BPD reaction to conflict at all. You can tell she gets upset but she doesn't have the kind of psycho meltdown I think they want her to give.
Glad to see more people discussing this in the thread. In my eyes, people wanted a villain on the show who would actually try and manipulate people from behind the scenes and sabotage others in effective ways. Basically do what Damiel failed to do. I feel like Letty could've been this if the crew played their cards right, but any time she tried to enter a "piss witch" persona, she was actively hated on for it or straight up punished by the crew for doing it.
The baby shaking challenge was a key moment in the show. If Sam came in and didn't say anything about Vance or Letty shaking Jon's baby, that would've reinforced the idea of sabotage being an effective method and Letty most likely of used it to her advantage in the future. Sam didn't do that, and by snitching about who shook the baby, it effectively killed any future sabotage attempts. This was disastrous content wise in my opinion.
Later on, Letty tried to play into her role as the villain and persona of the piss witch. Instead of rewarding her content making actions, they seemed to do the exact opposite of what they should've done. They had every freeloader target her putting her through weeks of non stop dog piling while the other fish got off with a fraction of the shit she dealt with. This, again, subtly put into Letty's mind that things such as sabotage would only hurt her in the long run. You want to be the Piss Witch? Well then we'll have Frank Hassle constantly harass you. You want to sabotage others? Then we'll tape you to ASF and constantly rig challenges with twitter polls.
The reason why so many people call Letty BPD and evil is because they want somebody they can hate. It's a reality TV show at the end of the day, and people want to see the person they perceive as "evil" suffer. Letty got thrown into that box for a few reasons. She's a chick with a sketchy past who pushed herself in certain challenges. She tried to sabotage her competition early on and was punished for it. It's much easier for a person to look at that and think "Wow, what a fucking BPD bitch, I ain't no simp, she's pure fucking evil." Rather than "Wow, this person is trying really hard to win this show, to the point where she's dealing with a constant shit storm because of it. That's admirable."
Letty is at the worst a naive person who lacks basic life skills who made shitty choices in her early life, and is willing to do some morally dubious stuff to win. You don't have to like her as a person, but you have to admit that someone willing to go through the shit she went through on this show deserves the win more than the people who barely went through anything.
