Shadow banning of people in sex work is quite common. Doesn't necessarily mean it's targeted against her. If she put up any sexually explicit content of any kind or mentions "sex work" on platforms like Instagram, it results pretty quickly in her posts no longer showing up on a general feed, and her being only searchable when her name is explicitly written by a direct connection/follower.

"Shadow banning" is a common thing on the internet that people in the sex industry have complained about for years as an unfair form of censorship:

https://www.modalitygroup.co/post/how-shadow-banning-is-impacting-the-sex-tech-industry

https://hackinghustling.org/posting-into-the-void-content-moderation/

One fact you're missing in your otherwise rather thorough collection of internet expression by Annie Altman:

You state several times that Sam Altman offered to by Annie Altman a house. However, she wrote in her Medium article that it was clear she would have no direct ownership of that house. In other words, Sam was buying a house for himself, and letting his sister live in it, on the condition of her silence and complicity:

"We spoke on the phone three times, and through these conversations I began to suspect the offer was another attempt at control. It seemed I would never have direct ownership of the house. Also, given the nature of my PTSD flashbacks, the house felt like an unsafe place to actually heal my mind and body."

Annie also stated in a Twitter post that there would be strings attached to this house, and she did not feel that living under a bargain of hushed control would be conducive to her healing from the silencing, gaslighting and PTSD she is trying to recover from, due to Sam Altman. It seems instead like an extension of the exact forms of control and hurt that she's trying to recover from.

https://allhumansarehuman.medium.com/how-we-do-anything-is-how-we-do-everything-d2e5ca024a38