Francine Rhenquist is a minor recurring character from The Simpsons, she is a bully who was introduced as a new student at Springfield Elementary School in "Bye Bye Nerdie".
Why She Sucks
Her character is nothing more than just a stereotypical bully trope, which is a trope that has already been done by other characters like Nelson Muntz and Jimbo Jones, except they're executed much better, while Francine fails in comparison.
She constantly bullies Lisa and every "nerd" in Springfield Elemntary School non-stop, in fact, there isn't a single scene in "Bye Bye Nerdy" where she isn't bullying anyone (aside from her first introductory and when Lisa sprays herself with salad dressing).
Despite being introduced in "Bye Bye Nerdie" and having an important role in that episode, she seemingly was reverted to a minor recurring character in the show and has never had an episode where she has an important role in it, thus making her a pointless character to the series.
Even though she doesn't speak that much, her voice is pretty annoying to listen to, especially when she screams.
The biggest problem with her character is that she is incredibly undeveloped and there is so much unanswered questions about her character.
Her character is also very pathetic when compared to Nelson Muntz, who is shown to have a lot of character and personality outside of bullying and also has a backstory as to why he became a bully, but Francine on the other hand seemingly has no personality or even a backstory as to how she became a bully.
Her reasons for bullying nerds makes no sense whatsoever; she bullies children because they produce some type of chemicals when they sweat, which causes bullies to want to beat them up.
She is a Karma Houdini, as she never gets punished for her actions, not even her parents punish her, they just treat her actions like it's no big deal.
The Only Redeeming Quality
She nicely waved to Lisa when she had nose plugs in, showing that she could a nice person, despite the fact that she bullies nerds.