I'm saying that I don't think "file storage service for locals" is even in the same product category as what Facebook does, even putting scale aside. They're an ad-supported publisher with extremely lax standards. A file storage, or even file sharing, service, isn't necessarily that, and it would take several steps to bridge that gap and travel from "not at all comparable to Facebook", through "grey area", and into "OK, now we're talking about something pretty similar to Facebook (and to Twitter, et c.)".
For sure agree these are totally different and the space between them vast! I was asking directly about a specific use-case so that I can better understand your perspective on who is responsible for the bits stored on a hard drive.
Ah, cool. I think of a file storage service more like a bank safe deposit box: you have rules, and there are laws, someone breaks them and you find out (or the cops do) that's on them. No-one expects you to carefully search every box (indeed, they'd likely be upset if you did) and you're not responsible if something illegal is put in there that you couldn't reasonably have known about (like, if someone tells you they're gonna put illegal shit in there, then you would have a responsibility to, at least, deny them service, but you're not expected to crack open the box after they leave and poke around for rule and law violations).
