I'm new to Switch and CFW. I don't really play online games but before I took the plunge and bought my series 1 Switch I had heard that running CFW and even just logging into a Nintendo account would be an automatic ban. I was told that I should set up EmuNAND on my SD card so that I can go back to stock if I wanted to purchase anything through the store which I did, but I was also told that I couldn't even play purchased games if CFW was enabled. Can someone explain what specific behaviour would cause Nintendo to take offence and issue a ban? For example would just linking a Nintendo account be enough? Going online and using something to give an advantage over other players? Linking an account and playing a game that was downloaded through a store other than the eShop?
The main rules for going online are:
* don't install any nsps/xcis, especially not homebrew nsps
* only use holding R while starting a game or the album to boot homebrew
* don't cheat or mod online, unless you know it's safe
* don't change your profile icon to a custom icon
* never mix emunand and sysnand for going online or do unnecessary nand restores on an online nand, it will cause log mismatches with nintendos servers, leading to bans
* don't delete your device logs unless you have a very very good reason to
* don't activate incognito on an online nand
* don't experiment with your device unique certificate in external tools
* never go online in backup games
If you keep these in mind it's mostly safe, im using cfw for multiple years now on two devices, still no bans, same for some friends of mine.