Even before Taylor created a Cliquesters account, Lindsay would take any opportunity she could find in order to harass Taylor and her friends at school. Once Taylor made the Cliquesters account, Lindsay took the bullying online. She commented on a picture of Taylor and Samantha, and then posted hateful comments on Taylor's page. She also created the video that led to Taylor's suicide attempt. She pays an older man to act as her father when confronted by Kris. In the end, Taylor and everyone else stood up to Lindsay, which resulted in Lindsay's humiliation. She is presumably Arrested after cyber bullying a minor has been a Made illegal.
Throughout the movie, she is depicted to be cruel, manipulative, and sociopathic.