It seems like no one actually knows what the list represents.
> Gibbons expected that the list would include only "a handful of the wealthiest of the wealthy" motivated solely by taxes; however, the people named in the list turned out to have a wide variety of motivations for emigrating from the U.S. and later giving up citizenship, and few were publicly known to be wealthy.[7]
> ...In contrast, Andrew Mitchel, a Connecticut tax lawyer interviewed by The Wall Street Journal for its reports on Americans giving up citizenship, states that the list is required to include all former citizens. [15]
> Gibbons expected that the list would include only "a handful of the wealthiest of the wealthy" motivated solely by taxes; however, the people named in the list turned out to have a wide variety of motivations for emigrating from the U.S. and later giving up citizenship, and few were publicly known to be wealthy.[7]
> ...In contrast, Andrew Mitchel, a Connecticut tax lawyer interviewed by The Wall Street Journal for its reports on Americans giving up citizenship, states that the list is required to include all former citizens. [15]
https://en.wikipedia.org/wiki/Quarterly_Publication_of_Indiv...