Since you asked I'll explain, even though I already stated that I stand corrected due to Saroj's response.
Part of the reason for my confusion: Look at the post count of your own. When I click on find all posts by you, it takes me back 20 pages and shows that the first one was made a "week ago", not a month ago etc. ... Somewhat similar results for others with high amounts of posts. When I first joined 3 weeks ago almost, there were members with large amounts of posts even then, if my memory serves me correctly.
Another question since we are on the subject (if you don't mind): Do the posts that some of you made to each other, before the board was officially opened to everyone, count towards your current post count #s?
Don't mean to irritate anyone or pry too deeply, just inquiring minds sometime have questions like this.