There seems to be more activity on the JD forum, too, although not as much as the Kubota forum.
This site originally started as a Kubota tractor discussion site, and the New Holland/Ford and John Deere sections were added a little later. Might be that there are just more Kubota guys 'cause they've been here a while. Some search engines will still bring this site up as the Kubota Tractor Discussion Board.
I'm sure as the word spreads you'll see more NH types.
Bob Pence