Concerning duplicates on Area51 in general, see heresee here.
I'm not a StackExchange Exec, but are you familiar with SuperUser? Sure, it gets questions, but it's not doing well - for various reasons. In another Meta discussion (forget where) it was quoted that Jeff and Joel have given up and no longer care about SuperUser.
SuperUser has become a catch-all for most everything "computer". As long as the proposal is viable (and if nessissary, the proposer defends it), I'm all for it, because it helps organize and undo the catch-all-ness of SuperUser.