I've only been a member for a couple of months. I found the site when I came close to being sucked into one of the scams Jenna discussed in her last newsletter. Got my first response to a query from a supposed agent's site, sent in two chapters, another response, then the hook--we think the book needs a "little editing, and here's who you should see."
I googled the agency. The site came up. I paged through some great archives that made things perfectly clear. Then joined and have found the site to be not only informative but tolerant of newbies and ignorance.
I'll be honest--in some other circumstances, I've felt very much like the first grader wearing all the wrong clothes, carrying a Raggedy Ann lunchbox, and having to do my work with those jumbo green pencils because my mother thought they would be easier to hold than the standard yellow #2 Ticonderogas.