[@robkk Moderator 11 years, 1 month ago]

Replacing blog comments with topic replies is scheduled for 2.7, but you can also use the handy bbPress topics for posts plugin.

You can create custom roles with custom capabilities in bbPress.

Custom Capabilities

There is an API or an example API in the Jetpack plugin.

https://plugins.trac.wordpress.org/browser/jetpack/trunk/class.jetpack-bbpress-json-api-compat.php

There have been users trying to make apps with bbPress.

WordPress JSON Rest API bbPress and Android

Also know there has been work to introduce an API into WordPress.

https://wordpress.org/plugins/json-rest-api/

And there already have been plugins in development for compatibility between the WP-REst API and bbPress like this one.

https://github.com/thenbrent/BB-API (Alpha version)

Any contributions for any work toward any type of bbPress Rest API are welcome and much appreciated.