Setting aside the obvious shock of the actual subject, I'm going to try the herculean task of bringing this back to being a HN-related topic...
My guess is that there is someone named Jeffrey Goldberg in the NatSec team (or high up, it seems like a common combination of first and last name at least), and likely that they meant to add him, rather than the EDITOR IN CHIEF of the Atlantic of all people. Could this be a UI/UX thing with Signal? (not differentiating between two Jeffrey Goldbergs on your contact list?).
My guess is that there is someone named Jeffrey Goldberg in the NatSec team (or high up, it seems like a common combination of first and last name at least), and likely that they meant to add him, rather than the EDITOR IN CHIEF of the Atlantic of all people. Could this be a UI/UX thing with Signal? (not differentiating between two Jeffrey Goldbergs on your contact list?).