Extra spam with a touch of Quechup

An article in the New York Times Technology section reviews a two-year-old social network called Quechup.  Upon accepting an invite, the site will provide you with an opportunity to add friends from your email address book.  The feature is similar in other social networking sites, but Quechup goes a step farther.  It automatically sends these invitations to everybody in your address book without asking for your permission.  You can read more about this on Mashable. 

I've already received one of these invites but decided to do some digging around since I wasn't familiar with the site.  After reading about all the spam complaints, I'm glad I didn't join.