Completed all user profile fields

Got 3 upvotes in a question tagged with "bug"

First flagged post

Voted 300 times

First rollback

First down vote

Deleted own post with score of 3 or higher

First edit

First answer was accepted with at least 10 up votes

Asked a question with 300 views

Question favorited by 1 users

Answer voted up 4 times

Question voted up 4 times

Answer voted up 8 times

Question voted up 8 times

Accepted answer and voted up 40 times

Answered a question more than 60 days later with at least 5 votes

Answer voted up 2 times

Question voted up 2 times

Asked a question with 200 views

First retag

Deleted own post with score of -3 or lower

Asked a question with 100 views

Left 10 comments

First accepted answer on your own question

Answered your own question with at least 3 up votes

Question favorited by 3 users

Edited 100 entries

Asked first question with at least one up vote

First up vote

Created a tag used by 50 questions

Answered first question with at least one up vote