I been operating two NNTP servers for nearly a decade now, and I wouldn't mind peering e.g. bitcoin.* with other NNTP peers. However, I do not want the hazzle of accomodating online users (i.e., NNTP clients).
That's indeed up to you, I meant that it's not dependent on this site its staff, unlike a forum change.
NNTP is distributed, so I guess in some way it's a better match to bitcoin than a centralized forum/mailinglist/web2.0thingy.