They took what is pretty common behavior amongst dedicated social media users and turned the volume all the way to 11.
- Even when she was a 4.2 and her image was nearly perfect, she was unhappy with her life and constantly trying to keep up with the Joneses, in this case the higher 4s. - Showing social media as the circle jerk that it is. Like my photo and I'll like yours back even though neither of us mean it! - Her brother representing the people who really don't give a shit about social media, have a "low social media score", but was the most genuinely real and happy out of anyone in the episode. - The truck driver who realized that no matter how great your image is, there's always gonna be someone there to one-up you, and decided to just flip a 180 into don't GAF mode and say everything she wants to say even if nobody wants to hear it and is the most satisfied she's ever been.