Over at the Nintendo Forums a moderator has posted the following:
You are not permitted to share your NWC id or friend code on a post, in your profile, through PM, or in a sig. Please do not discuss other ways of sharing codes either. This policy was created by Nintendo of America and we have been asked to follow these rules.
This is a radically different tact than Microsoft's gamertag integration, where they encourage Live users to congregate on My Xbox. In fact, most people want Nintendo's Wi-Fi Connection service to include more features like matchmaking and friend tracking.
[Thanks, Infendo]
