As I've mentioned, I do find Twitter even less "useful" than FB (and possibly even worse for the society at large), but while Dorsey come across as just a cluel

As I've mentioned, I do find Twitter even less "useful" than FB (and possibly even worse for the society at large), but while Dorsey come across as just a clueless, out of touch hipster, Zuckerberg comes across as not quite human automaton that performs experiments on humans. And FB is more valuable company, so that might be why they get picked on more. But I am still not convinced that FB provides any service that is actually valuable, let alone good for society as a whole. I think it could well be argued that even under press barons et al democracy worked better than it has been lately. But then the cynic in me says that even robber barons had more decency in them than Zuck, Dorsey and their ilk. Do we even need that cheap identity verification especially as provided by social networks whose incentives are aligned completely orthogonal to societal good? As anecdata, I actually met my wife on a dating site with no benefit of any FB authentication (or credit card, for that matter). What would FB connection do there? So no, I've never connected anything with any FB account, and I do not see that I am missing anything that I would find the least bit useful. Obviously, HN tends to look for technological solutions for problems (or even in absence of problems) but farming out "trust API" to a commercial entity that aims to maximise engagement seems to be a prime example of a (bad) solution in search of a problem.