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 award on another person's question
303 awarded
First bounty you manually award on your own question
976 awarded
Ask a well-received question on 5 separate days, and maintain a positive question record
2.7k awarded
First bounty you offer on another person's question
627 awarded
Question score of 10 or more
7.8k awarded
Question with 1,000 views
62.7k awarded
First bounty you offer on your own question
2k awarded
Ask a question and accept an answer
30.1k awarded
First question with score of 1 or more
67.2k awarded
Asked a question with zero score, no answers, no comments, and low views for a week
26k awarded

Answer Badges

Edit and answer 1 question (both actions within 12 hours, answer score > 0)
934 awarded
Answer score of 10 or more
11.7k awarded
Answer more than 30 days after a question was asked as first answer scoring 2 or more
6.9k awarded
Answer your own question with score of 3 or more
2.2k awarded
Answer a question with score of 1 or more
40.1k awarded

Participation Badges

Complete "About Me" section of user profile
63.3k awarded
Visit an election during any phase of an active election and have enough reputation to cast a vote
3.2k awarded
Leave 10 comments
9.7k awarded
Earn at least 200 reputation (the daily maximum) in a single day
413 awarded
Followed the Area 51 proposal for this site before it entered the commitment phase
67 awarded
One post with score of 2 on meta
1.1k awarded
Post 10 messages, with 1 or more starred, in chat
385 awarded

Tag Badges

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

Moderation Badges

First flagged post
4.5k awarded
First rollback
576 awarded
First down vote
4.7k awarded
Complete at least one review task. This badge is awarded once per review type
6.8k awarded
Delete own post with score of 3 or higher
166 awarded
First edit
44.5k awarded
Edit first post that was inactive for 6 months
2.9k awarded
First retag
2k awarded
Delete own post with score of -3 or lower
347 awarded
Approve or reject 100 suggested edits
170 awarded
Use 30 votes in a day
572 awarded
First up vote
54.2k awarded
First approved tag synonym
44 awarded
First tag wiki edit
409 awarded
Use the maximum 40 votes in a day
373 awarded

Other Badges

Visited every section of the FAQ (retired)
1.2k awarded
Share a link to a question later visited by 25 unique IP addresses
1.8k awarded
Read the entire tour page
16.6k awarded