I would like an option to prevent the address book from replicating with another one (same replica ID) if it has not seen in a while.
I would set mine to 2 months. If my address book as not seen you since then, there would be no replications (automatic anyway as it would be nice if it could be manually allowed.)
This would prevent any rogue address book from dumping documents and settings that have either been modified or deleted.
This would be especially good for administrators who take over domains as there is no realy way of knowing how many rogue servers exist in the environment and what practice the old administrators had to decomission servers. This could also be useful with other databases
Thinking more about it, it would be nice to prevent replication of the Names.nsf with ANY replica that is not officially on a server (such as a local replica on an admin desktop). This would help prevent an administrator from replicating the NAB locally, deleting half of it and have the changes replicated up..(don't laugh, I seen it happen...))