[lmm]

Many other Western countries offer equally powerful passports and an equal or better place to return to. In contrast the US is one of only two countries that taxes foreign citizens' income earned abroad, and the FACTA requirements are completely unique.

To use the article's own example, if you had an Irish passport I wouldn't see a lot of reason to keep hold of a US one (unless, of course, you did want to live or work in the US) - sure, in the event that you suddenly want to go to Equatorial Guinea some time, it'll cost you $200 and a bit of bureaucracy. But you'd make that back in the first year or two of not being subject to US taxation.