Stack Overflow Badges

Stack Overflow’s badge system is designed to encourage desired behaviours on the site. Based on the existing badges, what behaviours are desired? Are there any obvious gaps in the badge system? And, more importantly...

...which ones have got?

Badge category Bronze Silver Gold
Ask Questions
Get views for your questions  Popular Question (1K)  Notable Question (2.5K)  Famous Question (10K)
Get votes for your questions  Good Question (25)  Great Question (100)
Get your questions favourited  Favorite Question (25)  Stellar Question (100)
Accept answers  Scholar (1*)
Ask questions no-one cares about  Tumbleweed (0)
Write Answers
Get votes for your answers  Good Answer (25)
Get your answers accepted
Get your answers accepted without votes  Tenacious (6+)  Unsung Hero (11+)
Answer your own questions  Self-Learner (3)
Answer old questions  Revival (2)  Necromancer (5)
Answer bad questions  Reversal (20)
Answer questions in a specific tag  Tag-based (100)  Tag-based (400)  Tag-based (1000)
Vote a lot  Civic Duty (300)
Vote on questions  Electorate (600)
Vote for competing answers  Sportsmanship (100)
Write Comments
Leave comments  Commentator (10*)
Leave comments that get votes  Pundit (10*, 5)
Use the Chat system
Chat  Talkative (10*, 1)
Get chat messages starred by different users  Outspoken (10, 10)
Edit things
Edit entries  Editor (1*)  Strunk & White (80)  Copy Editor (500)
Edit old entries  Excavator (1*)  Archaeologist (100)
Edit tag wikis  Tag Editor (1*)  Research Assistant (50)
Manage the site
Delete your own posts
Flag posts  Citizen Patrol (1*)  Deputy (??)  Marshall (749)
Roll edits back  Cleanup (1*)
Approve/reject suggested edits  Proofreader (100*)
Review posts  Custodian (1)  Reviewer (250)  Steward (1000)
Retag things  Organizer (1*)
Create tags that get used  Taxonomist (50)
Create tag synonyms  Synonymizer (1*)
Show up
Fill out your profile  Autobiographer
Read the damn FAQ  Analytical
Visit the site daily  Enthusiast (30)  Fanatic (100)
Hit the daily reputation cap  Mortarboard (1*)  Epic (50)  Legendary (150)
Stick around  Yearling (1)
Be “active” in different subjects  Generalist (?)
Offer and award Bounties
Offer bounties on your questions  Promoter (1*)
Award bounties on your questions  Benefactor (1*)
Offer bounties on other people’s questions  Investor (1*)
Award bounties on other people’s questions  Altruist (1*)
Promote the site
Share links to questions  Announcer (25)  Booster (300)  Publicist (1000)
Participate in elections
View and vote in elections  Caucus  Constituent
Participate on Meta
Get votes for posts on meta  Quorum (1*)  Convention (10*)
Help launch Stack Exchange sites
Participate in the Stack Overflow beta  Beta
Participate in Area 51  Precognitive