Or he could listen to me and millions and millions and millions of other people who have not had any issues. I have no relationship with Microsoft and don't care either way, but my experience with Win10 has been nothing but positive.
The install base for Win 10 is around 800 million devices, 100K had serious issues last year, that is less then .02% of the install base.
.02% of anything is insignificant
I wonder of the 100K users were from pirated or questionable keys?