That's an interesting thought. I prefer the Discourse format better to post links and projects (with pics) that might not be 100% related to one of our Github repos.
Having said that, it might be useful as we try to build data dictionaries or discuss very specific commits related to a repo.
We have a Carloop lobby but it's empty since most people ask questions here. I would vote to keep the conversation here since you'll get the most exposure. I'm open, though.