This role requires a level and type of trust which Facebook does not have.
So FB wants to own the platform for exchanging security threats. Right now you can publish information to everyone or specifically to a group. It seems maybe they're trying to fill a space in between with information being distributed based on algorithm. I can imagine the argument eventually being that you should join the platform as it's the safe and responsible way to publish threat information. Am I being cynical?
Where's HTTPS?
That site absolutely destroyed scrolling on my computer