I thought about paid memberships but I'm not sure that is the direction I want to go yet. As for asshats destroying a site, we have to remember that there even here someone can get that information about someones "secret place" and destroy it by just simply registering for an account.
I think the camping portion will be open to all and the shooting portion will be locked down until they are vouched for by someone on one of several boards, this being one of them - this primarily to address concerns folks here may have about publicizing their super secret spot.