Diarrhoea's quite consistent
Quite an intellectual discussion, then you bring it down to my level!
With W10 getting in through the back door ( no no, not that one ) there are a fairly huge number of users, who were perfectly happy with 7 or 8 and now they are running 10 and quite a large number of them now have issues in one way or another.
I myself always go the direct fresh install approach, however, my youngest sons PC is chugging along and that was an upgrader, with it starting with Vista then 7 and then we let it go to 10 and we have NOT had any issues at all with it, so itsclearly a random thing.
My own main PC has had nothing but issue after issue mainly audio related with 10 and I have persevered, but enough is enough... The issues have simply eaten away at any love I have for W10 and being a linuc user too, I only actually need windows for some games, and given that all the games I care about I can now get running with minimal effort in Linux, I have absolutely no reason to stay with Windows, and so I will go back to 7 with the family PC so the ydont keep asking me to help when the sound goes iffy, and I myself will just use my Linux PCs instead.
Plus, I just hate how 10 ( and 8.x too ) looks - the windows etc... I liked Vista/7 and the glass stuff.