I called nintendo support and they told me the only ways to remove my nnid from the console are to transfer it to another console or to delete the profile it's connected to, so has something changed in the past year?
Why would you want to? If you're having connectivity problems, please don't give up. I'm sure you'll find a solution sooner or later, even if it may seem at the moment that you may not.
@@TheY2KReviewer I just temporarily disable it with ZL when turning on, I think I did not install it correctly because everything online gives me an error. But I'm going to keep trying to find what's causing the error, it might be one of the 99999 weird programs I have:)