If I'm not mistaken, in those days Rocksy was with some lucky fat bastard that directed her on how to act for the camera and which characters to cosplay, it's probably the reason she cosplayed so many lolis too. Also she was an ugly duckling at school so that motivated her tryhard, attention-craving but highly successful demeanor. I'm mostly going from memory of what I read on a thread so take with a grain of salt, but I imagine she remembers this time as a bad time for her, despite we looking at it and going "those were her good days".