Some things to be aware of:
It's possible to interact with this forum mostly by email. If you visit your settings and look at the options in the Email section you'll see that you can configure things such that you receive all posts via email. For anyone familiar with GitHub issues, the set up should feel the same (i.e. reply by email, @mentions, etc).
At the moment there are only two categories when making a new topic. Rather than defining too many of these upfront, we should allow for some evolution and iteration. One obvious category that comes to mind is for blog-post discussions. Please leave feedback on what categories we need on the topic: "What categories does tis forum need?"