Madlung, can I just point out, you had already recruited members from w00t prior to us taking in DC, soon after you took in these members you approached us for diplomacy so be honest, you would have recruited those 5 members anyway, just like you'd recruited homepage and acjw prior because you knew that would give you more of an advantage over us, even though you had 2 tribes against us if my memory serves me right.
Moreover, Leodarius I understand you may not see it as a big shift in dominance or whatever, but having experienced it first hand from both sides, the tribe which poaches members is almost certainly going to win because as Pani said it messes up the map for all those who you left behind.