I'm brand new to Wii u hacking, sorry if it's obvious but what does that mean?
It is completely safe as long as you don't cheat online or get cbhc (the best cfw / exploit) and delete the hacked game from your wii u (which i think is impossible if you use cbhc cfw since it disables the user from doing this).
I personally didn't use it(I used normal haxi not cold boot haxi) and sold my wiiu a month ago but as long as you follow everything in this guide you should be fine https://wiiu.guide/.
Do not follow Wii U Guide it's horribly written. Instead use Kafluke's Noob Guide
I thought wiiiu.guide was good? 3ds.guide is practically worshipped in the 3ds scene.
The difference is the noob guide started by me has become a gbatemp community guide. I make minor edits but the information is contributed by many users and updated all the time from experienced users. It's not really my guide at all
I can answer your questions.
I used your guide to install CBHC and I enjoyed how detailed it was compared to the other guide. I know in the 3DS scene a similar guide is praised as the holy grail, but it doesn't do a very good job of explaining why your doing what your told either and has you blindly copying files and making modifications without explanation. However, the 3DS scene doesn't really have a guide like Kafluke's anymore. It's all about themes, cheats, and piracy.
another thing I thought of, "title keys" I found a good website, I'm sure you know the one. and I was thinking, "what if somehow this title key is invalid?" would I get banned for using it? how do I know which key is real?
It's completely safe to hack. Just don't cheat online, because not only is that a dick move, you'll probably get caught.
