Best way of deleting data from VIP/PRIVATE and public servers

Hello, i was thinking of implementing a way for moderators to delete data from private servers and public servers, without having to join the specific private server.
But to do so, i was wondering what is the best approach.
Is there a “best way” to do so.

The information I’m looking at trying to get removed is.

  1. Leaderstats (Global across private and public servers).
  2. Once a user gets banned in either a public or private server, the user gets banned from the other end. (Exploiters are all around), mostly hiding in private servers.