First, you've created a community site using the site creation wizard, right? (Though, while helpful, it could be a forum on any AEM site.)
Second, what is your experience level with AEM platform in general?
Enablement resources are not yet included. You can contact your account representative to get more specific assistance.
I'm assuming you're working from this doc page : Communities Scoring and Badges
The first two sections are the Overview and describing the types of Badges.
The next section is of most interest: Enable Scoring :
There are scoring and badging rules that exist OOTB, you can use those.
Then you need to apply them to your community site
And then you also need to enable badging for the forum component on your site.
If this is too confusing or unclear, could you please let me know why?
- JK