Going back to the original question if Win10 really sucks badly, there are definitively two camps.
One that likes it, ad the other one hates it.
The ones that like it, seem to have no problems with the functioning of Win 10.
The other camp either has problems with the functioning, plus many of them do not like the way MS collects data, whatever data !!
So if you have Win 10 and like it, then so be it, and you probably do not care about the *data mining* of what you do.
You *can* reduce the data mining but you can NOT stop it completely !!
The other camp, ... well, until Win 7 stops for sure all the way, then hopefully Win 10 has its problems ironed out.
For those that do not like it and are beyond the 30 day roll back time, doing a clean install is really not difficult, but cumbersome.
You must have ALL the original disk(s) that came with your computer, and then just do a clean install.
Assuming you have made a back up of all your sensitive files.
Then you let the bugger update ALL the updates which takes a really long time and umpteen restarts.
Then you download the batch file to eliminate all the updates which are *bad*, and after you disconnect from the internet, do an un-install of those updates.
//www.city-data.com/forum/41827542-post22.html
(all the updates listed in that batch file are those which *prepare* your PC for Win 10
or install telemetry functions in Win 7)
Finally you set your updates to *manual only* and always check the list against the batch file, so you will not install all those bad updates again, and connect to the internet again.
Two days ago, I did a check on available updates on Win 7 and 90% were the ones I eliminated before.
The rest, I read up on, and then made the decision to install them or not.
I just hope that the descriptions of the updates is correct ... since they are from Microsoft.