Adobe hasn't developed this platform, it is Jive. I don't like it neither, but got used to it. I find it still easier to use and manage than the portal. Reason: blog posts, show cases, discussions, Q&A are all mixed up there. Search has the same problems as here in the Jive forums. Questions posted on the portal are synchronized to the Jive forums, where I am one of the moderators (not in the portal). In the portal you can bookmark items. That is one of the advantages as is the better look.
You'll see in this forum some subspaces: Advanced, Starters, Quizzing.... But as I already mentioned most users don't even care about those subspaces, and I gave up moving threads, since answers seem more important than such administration.
Threads (rarely discussions, mostly Q&A) are listed chronologically. You have to use the Search option to find subjects linked to your problems.