He bought three expensive koreimu. All of them said they have gold badge, but their speech are slightly different from each others.
The oldest one, is the well mannered big sister. She got the gold badge and her duty is to make her owner feel at ease and love her sisters.
Second daughter, got the silver badge. She's cute, so the anon want to bully her. Because she only have silver badge, the can't go to gold-only places, but her compasionate eldest sister will sacrifice that easiness and be with her.
Third daughter doesn't get any badge. The owner said she's no different from stray who just want to mate with some dirty Alice from the trash. Her job is to be serve the owner's unspeakable wants. When she can't do it anymore she'll be treated like stray. By the way, she almost called the owner an idiot in her anger because she doesn't get any badge, but stopped. Her sisters also quickly say sorry to their owner.