ha! I see old songs
Homebrew, homebrew... what is homebrew??
1) Different kinds of loaders for Wii/GC games in the ways not supposed: USB loaders, Out-Of-Region disk loaders. Disk loaders with any kind of modifications to the game.
2) cIOS, NAND emulators - so base for loaders from (1)
3) Many utilities to install WADs, IOS, cIOS and other things to manipulate with (1) and (2)
4) Emulators of older consoles and computers.
5) Launchers (like HBC, bootmii, priiloader) for 1,2,3,4
6) Modification utilities to change themes sounds, etc...
7) Some primitive games and direct ports of well-known and old-as-this-world games like Doom, Quake..
hmm... seams that's all.
So, let's check what is what by numbers:
1) Definitely help piracy and very well used
2) low-level of (1), i.e. used for piracy
3) utilities used to help piracy
4) the same pirate-ware. The fact that is for older consoles it doesn't void licenses. So launching your lovely NES Tetris is the same piracy as launching Metroid Prime from USB
5) Well, amount of piracy-related apps can be launched makes this category as true pirate-helpers
6, 7) probably can be called as piracy-free category. May be that's the main reason to hack wii? LOL..
And of course developers of each category say the same: We develop only apps, but only end-user is responsible for any piracy-related actions like loading not-owned games.
The real division on Piracy or Non-Piracy is here:
1) Pirated content which can cause some kind of courts, bust or closing site
2) Pirated content which abandoned or semi-abandoned and no one will "shoot admin" for it.
So, first is called piracy while second - homebrew
Or somebody really hacks his wii just to play silly 5-mins games and change background of system menu?