Hi there! I have not listened to the episode in question, nor did I read on it, but here are my thoughts.
This is a podcast in which we make fun of people. In all comedy, someone has to be the butt of the jokes. Oftentimes a lot of the most effective comedy is where the person telling jokes is the butt. Jeff Foxworthy, nature's most hilarious comedian, is a great example of this.
Now that I'm done baiting Citrus, we make fun of a lot of different groups of people. Some you may feel deserve it, some you may feel don't. But, in general, everyone gets their turn under the microscope. I recently read on something which prominently features someone with severe autism. In real life, this legitimately depresses me. I really dislike the feeling that there are folks that are disadvantaged. However, I can still find humor in the darkest of places. I'm sure that fat folks get put under the gun a bit more than other various groups (Autism for example). We can likely attribute this to two factors.
1) Commonality. How often do we (and by proxy, the average listener) encounter severely autistic people vs severely fat people?
2) Choice. Someone who is autistic is pretty fucked, but they don't have a choice in the matter, so there isn't really anything to condone/condemn. We cannot make the same claim for the vast majority of the overweight (unless you really want to get into a deep discussion about the pervasive efforts of marketing culture in the US and it's effect on weight gain). And like it or not, being fat is pretty much a choice (in most cases, obviously there are edge cases that we can ignore).
Speaking as a fat dude, I eat a lot of pizza and exercise very little. It's not really a mystery to me why I have weight issues. You should totally check out my video on the pizza roll challenge too. It's awesome!
I would say that we malign Juggalos quite a bit too. While less common, they're certainly making very bad decisions. MMFCLFL WOOP WOOP
Please apologize to your friend for me, while I was not involved in this particular incident (nor do I speak for the rest of the group here), it's bumming that someone would be hurt because of a hobby that I particularly enjoy. Alternately give me their info and I'll send an apology myself. That said, I think they're being pretty ridiculous and should grow a spleen (I heard from bunnybread that's what keeps you safe in MMA). If some nerds on the internet talking about not even you makes you upset, you're in for a pretty rough life.
Now everyone knows I'm a dummy, so I'm going to go back to blasting SATANIC SPEED METAL