Nimrod, Bas wasn't accusing you of anything, he was merely reporting what he had observed.

Anyway, I have plans for a filtering program based on a different system, which may make things simpler.
(Warning: extreme geekery follows)
Basically, it's possible to bind in-front of a program by binding to a specific IP address instead of 'any'. That way it's possible to create a proxy for JJ2 that runs on the same computer, with the same TCP/UDP ports. The only downside of this is that attempting to kick or ban a user by IP through JJ2 will kick/ban everyone, so as a workaround the proxy could watch for special commands (like "!kick" and/or "!ban"), remove them from the packet stream, and kick/ban the specific player.