Badges are markers of your involvement on the site. They are rewards that can be attributed to all active members of the site.
Some are fairly easy to get while others are pretty difficult to keep hold of! The conditions for obtaining each badge, as well as your progress to obtain it, are indicated in the "My badges" section of your profile.
Some badges can only be obtained during specific events, which also means that they may not come back. Grab them while you can!
If you have any ideas or suggestions for future badges please message our team.