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You don't need reputation (that's how we call it) to ask questions (or answer them); you can already do that at 1 reputation. You do need 50 reputation to comment.
You gain reputation by asking good questions or providing good answers; other community members can upvote them and you'll get 10 reputation for each upvote. Another common way (where I got most ...
Only top voted, non community-wiki answers of a minimum length are eligible
