> I guess they can’t afford to cover costs given current prices so they sell customer metadata to Facebook

This sentence, your thesis, is absurd. Where does it say they make money from selling data?

Furthermore, "I guess they can’t afford to cover costs given current prices" is a really strange foundation to leap from. Do you have any facts? Or are you just speculating on BackBlaze and making wild assumptions?

> now that other like-minded crazies can find each other faster than ever

You are right, there is nowhere else online where "crazies" gather - not 4chan, not reddit, not voat, not twitter, just Facebook?