Nearly everyone on this site can help by getting involved on Meta Health SE, voting up good content, flagging off-topic questions or low quality content, and suggesting edits or posting comments on posts that need to be improved
At 125 reputation, you can also begin to downvote bad content, along with the above mentioned moderating abilities
At 350 reputation, you can start to help guide new users posting for the first time, by reviewing questions and answers in the First PostsFirst Posts and Late AnswersLate Answers review queues
At 500 reputation, you can vote to close off-topic questions and reopen questions that should be reopened. You also have access to the Close VotesClose Votes and Reopen VotesReopen Votes queues. This is one of the most important parts of community moderation, but even if you haven't reached this reputation threshold, you can still flag questions as off-topic
Once you reach 1000 reputation, your edits are automatically implemented and you can review other Suggested EditsSuggested Edits, but more importantly, you can review in the Low Quality PostsLow Quality Posts review queue. Here, you can review posts that have been flagged and decide whether action needs to be taken
At 2000 reputation, you can access the moderator tools, where you can review some of the sites stats and also review the reviews others have made. You can also vote to delete questions
Once you reach 4000 reputation (which no one has yet), you can vote to delete and undelete answers. This is the closest you can get to being a moderator without actually being one, and is the place that everyone should hope to get to
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