I always said "take a look at success stories" to learn and have good exemple 
-From the main site, to arrive in discourse with this link:
http://community.nethserver.org/categories
To the newcomer be well oriented with well organized categories.
And to have the default view as
http://community.nethserver.org/latest
For old fellow people and olds wolves...
And have a clean category bar... like this one:
http://discourse.ubuntu.com
There only the categories filter,, latest view and categorie view...
nothing more, it's clean, it's fresh, it's good
All the rest ( New, Unread, Top, Bookmarks...) are accessible with the hamburger menu