Hello.
Now it's too difficult to find some old discussions - user need to check all groups.
I would suggest to create section (menu item type) that allow to display list of all discussion from all groups (or may be with some exceptions) with page pagination.
When I used JomSocial, I created single article (or blank) page, published "Discussions" module on it and display latest *** discussions. But EasySocial doesn't hac such module? Or I miss it?
But independent section "Discussions" with pagination and some sortings options (Last; More liked; More replyes; ets / from GroupA, from GroupB... + search field) would be more better.
It can replace Kunena or other extention. If "Discussion" is a "topic", so groups can be positioned like a "forum category". "Group categoryes" can be be positioned like a "Forum Sections".
I suppose, this section should contain:
1. Discussion title
2. Creator name and avatar
3. Latest poster name and avatar
4. Date created
5. Latest post date
6. Count of replies
7. Group title and avatar (it's like "Category at forum"

8. Counts of likes
9. May be something else.
Thanks.