There is a way to have another section of the forums that you have to subscribe to to have access to. We could set it up so that the jokes and non geocaching subjects are posted in that section. This way only the users that subscribe to that section can see them.
We can also assign someone in charge of this group and have it so that a user has to request to join this group and the person can except or deny the requester.
This really needs to be discussed more I think. Maybe we need to set up a geocaching event and we can discuss where we wan this web site to go.