Not just anyone can join a slack channel and immediate start chatting without some admin finagling. When choosing a place to put MontCode, I looked at slack, but it is not straightforward for new people to sign up. So annoying. There is a philly dev chat room on slack somewhere, I can find the link at some point later. A lot of things can be programmed to integrate with slack, but so can gitter. Gitter is just newer so doesn't have as much integration already created. I chose gitter because it's closely tied with GitHub. Anyone wanting to join MontCode should have a GitHub account so don't need some extra log in. Also, it's the place FreeCodeCamp has decided is the chat hom and FCC is the core of MontCode.