Sure, "Smart" now with the benefit of hindsight. Not so much smart, as lucky, and that was exactly the kind of worthless anecdote I was referring in my last post. The best policy as always to wait a bit.
As for the security and features, Windows 7 doesn't have any glaring vulnerabilities to start with, and while 10 brings with it some new features, it removes some significant ones as well. For many people, there are good reasons not to switch, even if one ignores the inherent risks of early adoption. It depends entirely on the user, and for me choosing between 7 and 10 certainly feels less clear-cut than choosing between XP and 7.
Forced updates still represent a huge, glaring regression in my eyes, the only real "deal breaker", and now that I've had a fair bit of time to mess around with the final OS and the show/hide tool, I can see that they're going to be every bit as problematic for me in practice, as they were in theory.
I can also see from the perspective of someone who has an HTPC or something and used Media Centre (as I once did with an HDHomerun) why they might not want to switch. They could go to the trouble of moving to windows 10 and finding some new software to replace MC, or they could just stay put with the software they're already perfectly happy with for another 4+ years.
Just because your set of priorities make Windows 10 a no-brainer for you, doesn't mean it'll be the same for everyone else. That's the point I would put to escrow and everyone else who claims there is "no reason not to" take up Windows 10.