Apparently, not smart enough. Kompas today (3/1/2009) reported that an official from DG Tax said that on January 1, 2011, everybody including those without NPWP will not need to pay any exit tax.
Hm, funny. My friends who refuse to pay taxes already called me: "See, we're right after all. We don't want to have NPWP. Going abroad? That can wait until Jan 1, 2011, my friend".