Hi!
You can join the Slack Community here: http://jsforwp.herokuapp.com/
Just remember that it is for community interactions and I only “officially” offer support for the course through the forums. But I agree 😉 It’s easy to hangout and communicate in Slack compared to a forum.
The open invitation link is new, so let me know if you have any problems joining!
Cheers 🙂
Zac