When I post a looking for game topic, I choose the number of players.  At the bottom of the posting it shows the avatars of the people who have joined, and in parentheses it says ( x open slots) .  When it says there is 1 open slot, it doesn't show the listing as though it's full.  I have to increase the posting to have one more than I actually want to make say 2 open slots, and THEN it shows the listing as if there is only one slot left.  Looks like the ( x open slots) function is not including the DM, or the formula that Roll20 uses to determine whether or not the listing should be shown is using a wrong number.  Please correct it, I didn't realize my listing wasn't showing until I examined it trying to figure out why I wasn't getting applicants.