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If you decide that Ping isn’t for you, you can turn it off from your iTunes Store account. When you turn off Ping, iTunes removes your profile, comments, and Recent Activity list from Ping immediately, but the information hangs around on Apple’s servers for a week. So if you change your mind and turn on Ping again, your information is still there. If you don’t come back after seven days, though, iTunes permanently deletes your profile information.
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