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Possible Duplicate:
Why should I register my account?

do you have to be logged in to post a question?

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No, but it makes it more simple for you to see the answers.

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  • How does logging in help there?
    – Arjan
    Mar 21 '11 at 8:53
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    If you ask more than a single question, you can see all of them in a single place. If you don't create an account, you will have to bookmark the URLs or search for them. Mar 21 '11 at 8:55
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    Unregistered members have full profile page, as far as I know the only thing they can't do is Vote.. Mar 21 '11 at 8:57