Stack Exchange has historically distinguished itself from forums by following a very matter-of-fact philosophy: questions, answers, comments, and no chit-chat. While this helps folks get answers to their questions, it can limit the site's efficacy in other areas: free-flowing discussions, informal talks, and general socializing -- all things that keep a corner of the internet healthy and build a community but fall outside the strict question-and-answer format. And so, after a couple of years, chat.stackexchange.com was introduced, as "a third place" for the denizens of the network (for info on how to use chat, check out the FAQ).
Each Stack Exchange site has its own room. Ours is The Factory Floor; in Olden Times, it thrived, but these days it's a shell of its former self. This meta post is, in essence, an advertisement for The Factory Floor. On behalf of the chat regulars who remain, I'd like to encourage folks to use it: to ask for advice about building your world, to talk about interesting facets of worldbuilding -- cartography, constructed languages, terrain design, etc. -- or to just interact with the other folks who makes this site more than just a repository of knowledge, but a community.
Going forward, we might try for specific events in chat, depending on what people are interested in: maybe a day for discussions about creature design, or for folks to promote projects they've been working on. Depends entirely on what people want to do. Chat's a helpful tool, but it doesn't have the visibility it deserves. I hope that we can turn it back into the valuable resource it used to be for this site.
Anyway, feel free to step (or take an air car) into The Factory Floor anytime you like. Everyone's always welcome.1
1Just don't touch that planet in the corner. It's the Earth Mark Two, and we're still working on the fjords.