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- Being 'early' has a big effect on your reputation.
- Here's an example of a user with only seven questions and three answers, who hasn't posted since 2009, who has a reputation of 19,000+ because he happened to post some very-general questions that have gotten a lot of up-votes since then.
Interesting features
- Review tests / audits
- Basically the problem was that 2k+-rep users were spamming the "Approve edit" and "Edit post" features to gain badges.
- https://meta.stackexchange.com/questions/157121/what-are-review-tests-audits-and-how-do-they-work
- https://meta.stackoverflow.com/questions/276681/are-you-notified-when-you-fail-a-review-audit
- https://meta.stackoverflow.com/questions/356505/why-does-the-review-queue-have-fake-questions/
- https://meta.stackoverflow.com/questions/256489/is-it-really-necessary-to-test-the-attention-of-users-reviewing-edits