This is why I don't like web-connected scripts, or indeed the whole idea of them. Even if I trust the script writer completely, there's no assurance that images might not get accidentally transmitted somewhere due to a programming glitch, or an otherwise "safe" server they are stored on gets compromised despite the best of intentions. While I respect everyone's views, I actually argued against having such features in SS since they cannot currently be disabled short of firewalling the program itself (which is what I do, just allowing it through for publushing, etc.).
Then again, the whole "blackmail kink" is not one I share, so I can't speak for those for whom the risk is worth the fun (there are surely things I'd do for "fun" that would make others terrified, so no judgement there!).
IMO, today's internet world is just too risky not to keep full control of what you do and don't post. It still amazes me how much identifying content people are happy to share and post online (most folks seem "fine" with scary tech like Facebook identifying people in others' photos!). I avoid almost all forms of social media like Facebook and Twitter for that reason. Plus, I'm old enough that I remember that one of the most liberating things about the internet used to be anonymity and freedom, especially for those of us with quirky kinks others might frown on... these days, more and more are posting things under real names that boggles my mind and could (has, in many cases) cost them their jobs, families, etc.
That said, *personally*, if someone had pictures of me being spanked and tried to blackmail me as per that article... sure it'd be pretty embarrassing in some cases but generally my family would be more likely to laugh or tease rather than judge too poorly (99% of folks I care that much about have at least some idea of my kink), and the same pretty much goes even for work colleagues too, thankfully. Besides, while my sexuality isn't anyone's business, I'm not ashamed... and everyone has their hidden kinks! For someone who'd face divorce, job loss or even worse persecution due to their sexuality or lifestyle choices, though, I can see why it would be a *really* big worry.
In regards to SexScripts, I actually have more concern about *other* people, not the script user. As said, if one chooses to play a balckmail script, they know the risk. I worry more about the ethics of someone potentially deciding to send some innocent co-worker they barely know sexually explicit images they wouldn't want to see!