It's even wilder than that, because the former tax lawyer relied on a strange quirk of NY State Law which allows individuals to sue on behalf of the state. That

It's even wilder than that, because the former tax lawyer relied on a strange quirk of NY State Law which allows individuals to sue on behalf of the state. That is, the suit was titled "State of New York ex rel David Danon v. Vanguard Group, Inc." note the ex rel -- it wasn't a personal suit against Vanguard ! This case was utterly bizarre and completely fascinating; the Bogleheads forum have perhaps the most informed discussion on the internet of this case: https://www.bogleheads.org/forum/viewtopic.php?t=143686 https://www.bogleheads.org/forum/viewtopic.php?t=143686