Pat-It's happened on earlier models. Later models seem to have thread locker applied. I tried taking the shift lever shaft off of my '07 Wee to apply thread locker after seeing such reports but it wasn't coming off. Take off circlip #36 to access shaft #31 better and add some Loctite. There are flats to give a wrench a place to grip the shaft when screwing it back on.
I understand and agree with your ethics. I don't see a problem with accessing the blowups, which is really the high value for me.A number of places have parts fiches online. I have MrCycles*Honda*Kawasaki Polaris*Suzuki*Yamaha*Motorcycles ATVS Scooters Utility Vehicles bookmarked for my bike. I change years, models and even manufacturers from that page if need be.
Since I purchased paper service manuals, I believe that allows me to use limited amounts of excerpts from online versions of manuals for educational purposes. Posting a link to complete online manuals is against forum regulations and using them at all without purchase would be a copyright violation.