This makes me feel like the creators think that all sharing is on Facebook. I know it's not true, but it's still irritating to see useful products locked up in Facebook's walled garden.
i was a little disappointed by that too, for a minute,
until i reminded myself that even most shared i.s.p hosts
offer unlimited storage and bandwidth these days, often
for as little as $5/month or so, so file-sharing is cheap.
and honestly, although i'm sure the n.s.a. can see it all,
i'm a little glad that facebook can't easily scan my files.