It's rude but it's not especially mean.  She might even have laughed at his joke herself. I mean I have some sympathy for your reasoning but this forum gets waaaay meaner than that...  and also part of the premise here is that they automatically "start it", by being fat.  Regardless of what else they do. It seems like you are objecting to FPH itself, which is a valid thing to do, but not a constructive one seeing as it'll just get you banned.