atrendthatshecallsa‘modernexampleofatragedyofthecommons.’[33]Justasintheclassicversion,subjectswhoprotecttheirdatacontinuetoreapthecollectivebenefits(suchasinmedicine)ofdataleftinthecommons,yetthosebenefitsarethreatenedandwilldegenerateasdatasubjectsoptout.Othersstrikeadifferentwarning,arguingthattheanonymizationofidentityleadstocrowdbehaviourandsubjectstakinglessresponsibilityforwhattheysayanddoandincreasesthelikelihoodoftheirmisbehaving.[34]Boththeargumentsforandagainstanonymizationasasolutionpresumethatwhatisatissueisprotectingthe‘datadoubles’ofcitizensubjects.