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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
8 awarded
First bounty you manually award on your own question
29 awarded
Ask a well-received question on 5 separate days, and maintain a positive question record
166 awarded
First bounty you offer on another person's question
16 awarded
Question score of 10 or more
547 awarded
Question with 1,000 views
1.1k awarded
First bounty you offer on your own question
61 awarded
Ask a question and accept an answer
1.4k awarded
First question with score of 1 or more
3k awarded

Answer Badges

Edit and answer 1 question (both actions within 12 hours, answer score > 0)
58 awarded
Answer score of 10 or more
818 awarded
Answer more than 30 days after a question was asked as first answer scoring 2 or more
415 awarded
Answer your own question with score of 3 or more
34 awarded
Answer a question with score of 1 or more
1.6k awarded

Participation Badges

Complete "About Me" section of user profile
5.7k awarded
Visit an election during any phase of an active election and have enough reputation to cast a vote
Leave 10 comments
507 awarded
Earn at least 200 reputation (the daily maximum) in a single day
19 awarded
Followed the Area 51 proposal for this site before it entered the commitment phase
39 awarded
One post with score of 2 on meta
121 awarded
Post 10 messages, with 1 or more starred, in chat
28 awarded

Tag Badges

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

Moderation Badges

First flagged post
349 awarded
First rollback
28 awarded
First down vote
391 awarded
Complete at least one review task. This badge is awarded once per review type
551 awarded
Delete own post with score of 3 or higher
14 awarded
First edit
1.9k awarded
Edit first post that was inactive for 6 months
119 awarded
First retag
135 awarded
Delete own post with score of -3 or lower
57 awarded
Approve or reject 100 suggested edits
9 awarded
Use 30 votes in a day
41 awarded
First up vote
3.6k awarded
First approved tag synonym
5 awarded
First tag wiki edit
49 awarded
Use the maximum 40 votes in a day
30 awarded

Other Badges

Share a link to a question later visited by 25 unique IP addresses
49 awarded
Read the entire tour page
1.3k awarded

Retired Badges

Visited every section of the FAQ
55 awarded
Asked a question with zero score, no answers, no comments, and low views for a week
147 awarded