[Dudebro]

Most of the homebrew legal section on wiki isn't trustworthy. After the first paragraph it has no sources or citations. I bet it was some angry Wii owner who got his Wii banned for breaking the TOS.

When you buy the Wii it is yours but Nintendo can certainly block you from any online interaction(updates, multiplayer, ect) if they catch you using unauthorized software in their system(you bought it but they own the online service). This is exactly what Microsoft does with the 360, they do not brick the system since you can still play it offline all you want. I can't see Nintendo bricking a system and losing respect and sales, but I can see them screwing any online interaction you may want to use. Not worth the risk imo unless you really need those homebrew games at the risk of everything else.