Our issue tracker can always be used to address internal inconsistencies within the current specification, or updates to the website. Beyond this, we try to limit discussions to those which focus on problems that will be dealt with in the next version of JSON API. A roadmap can be found on the about section of our website.
The ideal world we are shooting for is an empty issue tracker on release days.
Our discussion forum is where general conversations about JSON API should take place. Ideas for new extensions and questions about how to correctly implement or consume an API that adheres to the JSON API specification belong here.