When I was working in the queue yesterday, there were almost 350 items in the queue. Some were as simple as changing a team or updating a PID for a player with a same name. Others require some research on our part (because the submitter didn't give enough proof and we've been burned too many times to trust every request), so some take time. Also, because of the sheer number there, there are probably 100 requests that will be simple to handle - once seen.
There are only a few of us who handle these, and a couple have recently stepped away from doing them as some members have not been kind toward them (for no real reason). I had stepped away for a while myself (not due to any issues with people, just too busy here otherwise), but like I said, was working on them yesterday. I'll see what I can get through today.
To directly answer your question of "How long does it take for approval and posting?", there is no set time. When we have lots of people working these, and getting the queue down to a managable size, could be within a day or two, max. Right now, with the 300+ queue, it could be a while.
Thanks for submitting the checklist. I did find it in the queue.
-- Dan --
Note: Please see my profile for more info regarding trading (section updated 3/4/2024). I have added a large portion of my inventory to the site, and currently have trading turned on (details are in my profile).