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Possible Duplicate:
How do comments work?

When viewing a question on Stack Overflow, there are answers that can be voted on, but an answer can also have a multiple comments from different users.

How do you add a comment to an answer on Stack Overflow?

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migrated from stackoverflow.com Dec 18 '12 at 7:57

This question came from our site for professional and enthusiast programmers.

marked as duplicate by Shadow Wizard, Martijn Pieters, Manishearth, Toon Krijthe, hims056 Dec 18 '12 at 12:07

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

A reputation of 50 is what you need and look at if the post you want to comment is closed then you can't comment.

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@GregJF have i answered you? – vr1911428 Dec 18 '12 at 2:25

You need to have at least 50 rep to comment everywhere but you're not quite there yet.

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And folks can help by up-voting his question. He can help by picking an answer. – The Dark Avenger Dec 18 '12 at 2:36
    
That won't make a difference once this question gets migrated to meta. – Matt Ball Dec 18 '12 at 3:57
    
@TheDarkAvenger - Generally, it's advisable to only upvote well-researched questions, but of course, people are free to vote as they please. – jmort253 Dec 18 '12 at 8:05

You have to have a minimum level of reputation (50, I believe), and the question cannot be locked by the admins (or community).

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