Gold Badges are rare. You'll have to have timing, skill, and endurance to even qualify. They represent some feat of spectacular excitement. These badges are not earned by the faint of heart!
A little wordy, perhaps.
If you look at the Gold badges, they are mostly not 'self-achievable' That is to say, most questions or answers, regardless of their quality will never have the chance to earn any of these. Most of them require a confluence of a widely approachable topic, a well written engaging question and a few powerful answers that are linked to by external blogs.
- Electorate: Voted on 600 questions and 25% or more of total votes are on questions
- Fanatic: Visited the site each day for 100 consecutive days
- Legendary: Hit the daily reputation cap on 150 days
Luck + (some degree of) Skill
- Famous Question: Asked a question with 10,000 views
- Great Answer: Answer score of 100 or more
- Great Question: Question score of 100 or more
- Populist: Answer outscored an accepted answer with score of more than 10 by more than 2x
- Reversal: Provided answer of +20 score to a question of -5 score
- Stellar Question: Question favorited by 100 users