I am fiddling around with the community server version: v65r5
I miss two features :P
1)In the list of keys: A action button that blocks keys (e.g. /admin?keys&block=<key>)
2)New feature below the "list active users": "List of inactive users". Even if they are pruned it could be nice to know how many are listed for deletion. Maybe there could be an action button for renewal or maybe to make VIP (opposite of block but where a block still overides a VIP-status) (e.g. /admin?showinactive)