Still not going there
Win 10 is currently what I have to use at work, and to be honest, as an OS it works fine despite the schizophrenia that is control panel (two different places, still?)
But on my own PCs (personal or business) I wouldn't touch it with a barge pole. The data collection policies of Microsoft are just too much like malware. Give me the option to completely turn it off, and proveably so, and to be able to permanently reject unwanted updates, and I'd happily reconsider.
Until then it's Linux Mint, and VMs with older MS OSes (if only I could get the updates to install properly on them without 100% svchost.exe usage for days on end).
As for the 70% accepting full telemetry, I doubt many of them even know that they're sending data to MS. Of those that do and keep the setting at maximum, they've probably bought into the Cortana thing, which requires way too much personal data to be shared with MS in order for it to work. Most people would probably be very uncomfortable with it if they really knew just where the data had to go in order for Cortana to work.