Fucking Weeaboo
1. Yes.
2. It helps to have Homebrew Channel installed for installing Priiloader and using a WAD manager program.
3. If you have an older Wii that can use BootMii, you can backup the Wii's NAND which will save you from MOST things. Generally, playing around with the Wii is safe if you get your WADs from trusted sources (again, can't list where due to SDA's rules).
2. It helps to have Homebrew Channel installed for installing Priiloader and using a WAD manager program.
3. If you have an older Wii that can use BootMii, you can backup the Wii's NAND which will save you from MOST things. Generally, playing around with the Wii is safe if you get your WADs from trusted sources (again, can't list where due to SDA's rules).