I like that the different discourse forums are almost little worlds of their own. They share a similar set of underlying ‘physics’ that make them easier to visit and absorb (once you’ve familiarised yourself with one), but they have distinctive branding, rules, tone of conversation, etc, etc. They seem like solid entities in their own right. I think anything that dilutes those bounderies would be a move in the wrong direction.
In my ‘DiscourseDiscovery’ land I can imagine a feed made up of latest activity grouped by forum (but summarised/abridged), with the ones you’re a full member of being ‘pinned’, and the order of the rest measured on the level of interaction (topics followed, likes given, bookmarks, etc, etc).
There’s a possibility that what I want is a BIGdiscourse, that has all the functions and features of a regular discourse, but with forums instead of topics. 