Besides gaining reputation with your questions and answers, you receive badges for being especially helpful. Badges appear on your profile page, flair, and your posts.

Question Badges

First bounty you manually awarded on another person's question
17 awarded
First bounty you manually awarded on your own question
78 awarded
First bounty you offered on another person's question
32 awarded
Question score of 10 or more
1.5k awarded
Asked a question with 1,000 views
3k awarded
First bounty you offered on your own question
116 awarded
Asked a question and accepted an answer
3.8k awarded
Asked first question with score of 1 or more
6k awarded
Asked a question with no votes, no answers, no comments, and low views for a week
154 awarded

Answer Badges

Answer score of 10 or more
2.6k awarded
Answered more than 30 days later as first answer scoring 2 or more
132 awarded
Answered your own question with score of 3 or more
76 awarded
Answered first question with score of 1 or more
3.8k awarded

Participation Badges

Completed all user profile fields
8.6k awarded
Visited an election during any phase of an active election and had enough reputation to cast a vote
338 awarded
Left 10 comments
965 awarded
Earned at least 200 reputation (the daily maximum) in a single day
129 awarded
Followed the Area 51 proposal for this site before it entered the commitment phase
78 awarded
One post with score of 2 on meta
180 awarded
Posted 10 messages, with 1 or more starred, in chat
123 awarded

Tag Badges

You must have a total score of 100 in at least 20 non-community wiki answers to achieve this badge.
219 awarded

Moderation Badges

First flagged post
851 awarded
First rollback
48 awarded
First down vote
845 awarded
Completed at least one review task. This badge is awarded once per review type
633 awarded
Deleted own post with score of 3 or higher
21 awarded
First edit
3.7k awarded
Edited first post that was inactive for 6 months
184 awarded
First retag
233 awarded
Deleted own post with score of -3 or lower
85 awarded
Approved or rejected 100 suggested edits
13 awarded
Used 30 votes in a day
111 awarded
First up vote
12.6k awarded
First approved tag synonym
6 awarded
First tag wiki edit
76 awarded
Used the maximum 40 votes in a day
64 awarded

Other Badges

Visited every section of the FAQ (retired)
445 awarded
Shared a link to a question that was visited by 25 unique IP addresses
327 awarded
Read the entire about page
945 awarded