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.)".