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
239 awarded
First bounty you manually awarded on your own question
805 awarded
Asked a well-received question on 5 separate days, and maintained a positive question record
1.8k awarded
First bounty you offered on another person's question
506 awarded
Question score of 10 or more
5.6k awarded
Asked a question with 1,000 views
45.5k awarded
First bounty you offered on your own question
1.6k awarded
Asked a question and accepted an answer
22k awarded
Asked first question with score of 1 or more
53.1k awarded
Asked a question with no votes, no answers, no comments, and low views for a week
20k awarded

Answer Badges

Answer score of 10 or more
8.1k awarded
Answered more than 30 days later as first answer scoring 2 or more
5k awarded
Answered your own question with score of 3 or more
1.6k awarded
Answered first question with score of 1 or more
31.2k awarded

Participation Badges

Completed all user profile fields
20.3k awarded
Visited an election during any phase of an active election and had enough reputation to cast a vote
3.2k awarded
Left 10 comments
7k awarded
Earned at least 200 reputation (the daily maximum) in a single day
356 awarded
Followed the Area 51 proposal for this site before it entered the commitment phase
66 awarded
One post with score of 2 on meta
943 awarded
Posted 10 messages, with 1 or more starred, in chat
335 awarded

Tag Badges

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

Moderation Badges

First flagged post
3.4k awarded
First rollback
440 awarded
First down vote
3.6k awarded
Completed at least one review task. This badge is awarded once per review type
4.6k awarded
Deleted own post with score of 3 or higher
133 awarded
First edit
32k awarded
Edited first post that was inactive for 6 months
1.8k awarded
First retag
1.6k awarded
Deleted own post with score of -3 or lower
215 awarded
Approved or rejected 100 suggested edits
125 awarded
Used 30 votes in a day
459 awarded
First up vote
37.5k awarded
First approved tag synonym
39 awarded
First tag wiki edit
354 awarded
Used the maximum 40 votes in a day
282 awarded

Other Badges

Visited every section of the FAQ (retired)
1.2k awarded
Shared a link to a question that was visited by 25 unique IP addresses
1.3k awarded
Read the entire about page
5.2k awarded