Ton of people fake being physically or mentally ill, people fake symptoms and diagnosis for variety of reasons: attention, getting out of responsibilities, preferential treatment, getting others taking care of them, getting out of having a job etc It’s nothing new. There will always be people like that. I’ve met a ton.

Some just do it because they think it’s cute or funny (oh I like to clean so I have OCD oh I get upset so I have PTSD). I find it deeply offensive to people who actually have true diagnosis and actual illness or disability.