My running group is growing like crazy now. It's cool but of course there are growing pains. The biggest annoyance HANDS DOWN is my exposure to people who are unnecessarily hard on their bodies.
I understand everyone has their own journey not only toward fitness but to acceptance of their bodies but hearing "I'm so fat... I hate my fat legs..." and things of that nature is HORRIBLE!! It's really terrible when you're skinner than most people will ever be and you're pinching a millimeter of "fat" aka skin around your middle. If you feel bad about that smidgen of skin, how do you think the bigger people all around you feel? I'm fine. But you're making some of them feel pretty terrible.
Maybe I'll start instituting a mandatory body self-compliment every time I hear someone say something negative about their bodies. If you're going to say something horrible and tear yourself down, you're also going to say something positive. Everyone doesn't have the privilege or ability or opportunity to go out and do what you're doing. YOU'RE HERE. That's the first step in the right direction.