The growth of communities should not be decided by outsiders who have nothing but political stakes, but by those who are insiders who have so much more to gain (and lose) with the growth of their communities.
I think some comments are a bit short-sighted in that they assume that everyone in NIWA is focused purely on NIWA: that isn't the case. Some of us are anime fans, some of us are Square Enix fans. Some of us are Capcom fans, music fans, and other types of fans. The unifying bonds are that we all enjoy Nintendo games, and that we all participate in NIWA. That does not mean that we can not--and should not--participate in other communities that hold our interests.
As fans of other communities, we are free to share ideas we've come to learn here with our other homes, and try and improve them. The other IWA organizations will come up on their own, both by themselves and because we as NIWA exist and have influenced some of their members who are also our members.
We are not a single island in the vast whiteness of the internet, we are still a rather small suburb that is part of a rather vast city that many of us commute to every day.