No one is armchairing anyone, we're just making points about how two disorders share the same symptoms and while one is viewed off as "I'm a crazy emotionally unstable person who will split on you", the other one is seen as a cool one and like playing The Sims in your head.
Plus Sybil, the Queen Case of DID, was initially diagnosed with hysteria. I wonder what other disorder has a history of being represented as having mental breakdowns and yes, that's again BPD. Dissociation? In both of the disorders. Unstable sense of self? Both disorders. Trauma based? Both disorders. Doing shit you'll regret? Both disorders, one being splitting and the other one being "Oh, THAT alter did THAT, I'm sorry." Mood swings? Don't even get me start on this, most of so called alters of these system claim to be Cool Teenage Boy, Mysterious Boy, Angry Boy, Angry Child, Bubbly Girl, Sad Child, Mommy figure and so on. Chloe has Nina, who has to act bubbly and it's always happy and Jade who's aggressive. They are the moods.
It's not armchairing or playing Dr Aquaman on anyone, it's comparing. Plus,both Chloe (as Nina at the time) and Nan claimed to have BPD and other snowflakes on Youtube that talk about DID also claim to have one alter with BPD. Trisha Paytas herself said she had BPD traits and look at her, you can see a person who claims to love Jesus but also sells porn of herself. I wonder if they're alters.....