To me, the problem with the 'he could have just hit unsubscribe' argument is that there is no rational user that --wouldn't-- unsubscribe after receiving that m

To me, the problem with the 'he could have just hit unsubscribe' argument is that there is no rational user that --wouldn't-- unsubscribe after receiving that many emails. So either they're totally ignorant of the sheer bulk of emails they're sending, or their strategy is to spam users until they unsubscribe.