i would check 2 things if you can. #1 how many members does it have. #2 Can you see any posts or anything to give you an indication of most recent activity. That could explain a lot of it maybe.
Got my collection kind of split up in 3 places in two seperate states. So I am willing to trade but might take me a bit to find the cards from my Trade / Sell list. So please message me first so that I can take some time to find the cards you would be interested in. Whether it's an hour or 2 months or etc. I would get back to you after locating the card or cards.