I believe that people should dedicate their time to one server and not two, but if you are staff on two you need to contribute to them both. This was a big problem we had with konidias, he didn't do one thing for 2002 because he claimed to be working on 2001 all the time. Eventually he was banned from 2002, but that was after he sat on RC durring the first preview trying to take credit for other's work.
Birdbird and Loriel, on the other hand, are contributing to both servers. If staff is capable of doing this, why not let them?
And btw, I never worked on 2001, I just had global RC for a little while to help with account problems, and made that leet nuke NPC for the armmagedon
