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Message: <blockquote data-quote="durango" data-source="post: 1645142" data-attributes="member: 98789">When I go to a thread and look down the left column, I see things like member's avatar, member's name, number of posts, and Mac specs.Then I see some dots......small ones below the member's number of posts, and I don't know what these mean. Do they indicate the number of posts, e.g., one dot = 100 posts?Then below the specs I see one large dot, which I think is used to indicate whether the member is online (green) or offline (Grey). Is that correct?Is there a place/post I can go to and find the definition of the various symbols used in Mac-Forums?And what is a Trackback?</blockquote>