Based on your activity on the community, you can earn several badges.
Have you earned a badge? Then this will be visible on the right side of the community homepage. You can also find your earned badges on your profile. Don't want to display your badges on the homepage? Go to your settings and hide your badges.
You can earn badges for a variety of reasons. For example, because you often post topics or respond to topics of other members.
Good luck earning badges!