Group rage is good for bonding a community—as Phil Ochs once put it, "the family that slays together stays together"—but that's not the kind of community we want HN to be. Indeed, how we react to situations where someone is (or is seen as) obviously guilty is a good measure of how well we're holding to that standard.
I realize the above may sound counterintuitive, but consider that the comments we get are the best predictor of what we'll get more of. Do we want more of those? The dynamic they lead to is people one-upping each other with fiery denunciations and getting ever more reflexive. We can't have both that and reflective discourse, and we want reflective discourse, including about bad things.
The people at Theranos, especially the wrongdoers, probably want to be and feel understood. I think that's a step toward insight and justice.
Maximizing fury (I love the turn of phrase) makes people defensive, which aborts the insight-pursuit.
[0] Sorry to use so many qualifiers. Because I'm telling people how they should talk, I want to be as precise as possible.