Just to clear things up, mn1 is not the only person with a working exploit just the only person foolish enough as to be so kind as to let you all no that at least one exploit exists. mn1 did not solely decide to not share the exploit but listens to sense and obviously understands the concept of why it should not be released yet. At 16 years of age we all liked to be recognised and praised and nothing is wrong with that also, he does not owe anyone anything.
Anyone here smart enough to open an account is also smart enough to create an exploit, unfortunately most are to lazy to learn.
Here is how to create an exploit of your own:
1) Go and google search for a quick explanation of assembly language and for some references to follow.
2) Find a quick course, also on Google, for c++ or something similar. (Maybe "teach yourself c++ in 24hrs" or "an idiots guide to c++") look for pdf versions.
3) Get a hex editor
4) Get IDA Pro if possible but the free version will do.
5) Get a nus grabber.
6) Search this forum or look at
@NWPlayer123 posts for a great explanation of what files you need, how to obtain them, how to decrypt if needed and a great few pointers of how to use IDA Pro to reverse engineer all the WII U files you want.
All the information is free and readily available to allow anyone with motivation to create an exploit, you don't need to be super smart just motivated.