A few years ago, that used to be a good place to sell and buy games. I
bought a couple there - one of them was GK3 which was the last one I bought
there. Since Ebay became more popular for selling games, marketplace got
deserted. There used to be some good deals there. Oh well, nothing stays the
same it seems.
And I don' see any harm if people put FA here in adventure NG as long as its
an adventure game - some people here might be interested in checking them
out on Ebay and might have been looking for a particular game for a long
time. And as far as I know, nobody "maintains" marketplace NG or adventure
NG. There are no moderators here or marketplace.