Reunion.com dupes new members into signing up by sending them an email that pretends to be from an acquaintance who’s been looking for them (on Reunion.com, naturally). After signing up, the site sucks in your contacts and immediately begins spamming them to join by sending out a similar email. If one of those people then signs up at Reunion.com, their contact list is scooped up and the cycle starts all over again, like a social engineering version of a virus or parasitic infestation. Maybe this is why Reunion.com can claim to register about 1 million new members every month.
