I think you're overthinking it. She probably just has a lot of real people connections and drives the algo to meaningful interactions. When a ghost logs in, they don't know what to show so default to "general" spam which is just AI generated woman.
The algorithm is not optimised for meaningful interactions, even 10 years ago i couldn't get it to even mostly show friends and family after fighting it for a week
The algorithm is not optimised for meaningful interactions, even 10 years ago i couldn't get it to even mostly show friends and family after fighting it for a week