As I sold my Wii a couple of weeks ago (it was fun while it lasted, but was gathering too much dust to justify its existence) today I unsubscribed from the Nintendo email newsletter. Or at least that's what I tried to do. But I'll need to wait:
Your Nintendo e-mail subscription status has been updated.
Please be advised that it may take up to 10 business days to unsubscribe you.
WTF?! I can subscribe in an instant, but unsubscription takes up to 10 days? The unsubscription method was a heavily obfuscated URL, so where's the issue? Are Nintendo manually processing unsubscriptions? Meh.