Hmmm AF fine tuning : Bullsh#t

Just one word from me about AF fine tuning.............

Working with Nikon since my Photography education in 1979 and

had my first new Nikon F2 filmbody and till now:

F3-F4-F5-D100-D200-D300-D3-D3X-D700 and D800

I have more than 25 Nikkor lenses since the beginning and still use them

all !!! and Always sharp!!!!

But since a few years, people can screw their body AF tuning with screwdrivers

and now the bullsh#t started

KEEP OFF FROM YOUR AF-TUNING!!!!!!!!!!

Or does it mean dat all those nikkors since 1946 till the AF-finetuning possibility

are.............................?????