It convinced me to switch. I've been on Windows since forever and was excited for Windows 10, but the privacy (and auto update) issues convinced me to dual boot with Linux Mint, which I now use for everything but the occasional game. I have a few small gripes, but overall it works well (bluetooth drivers actually work much better).
I can kind of see MS's perspective, in that everyone else is doing all kinds of tracking and auto-updating on all their platforms. But for me it really felt like I was losing control of my computer in an unacceptable way.