I understand. We will be sure to keep the magical wards in place so that only myself and my companions can unlock its contents for the time being. Perhaps, in the future it might be a more welcome, useful tool to have in the town's possession, but for the time being I do agree access should be limited.
The list can be made, and kept updated when others arrive. In turn, their names would be removed should someone either go through a door, or be returned to where they came from.
You are quite right. Being here, my friends and I have been able to unearth a great deal of information about things that happened in our world that could change the turn of certain events should we go back. It's also allowed me to say things I most certainly was not brave enough to say back home.