The "bratty sis" persona functions as performance. On short-form platforms, a wink, a hair toss, a sly caption can be curated into a character. Performance allows agency: by leaning into "bratty," a creator can control the narrative, owning the provocateur role before critics can pin it on them. It can be a shield: preempt the insult by adopting it as a badge, deflating its power. But performance also has costs. When audiences conflate character with personhood, nuance is lost. A clip looped out of context becomes a caricature; a joke becomes evidence of disposition.