Personal Email Assistant Is Pissing People Off

You know, you sign up for something and you think it's a god send, your savior and then it goes and starts harassing your friends and family. Ever come across software like that, uh hmm ... Plaxo, SMS.AC, etc. There's a new one called I Want Sandy and people over at GetSatisfaction are complaining about how it's pinging their contacts and trying to get them to sign up. Even if there's a feature to turn this off, what were they thinking when they created this functionality if they knew it was like opening Pandora's box? Anyone else have any interesting stories about software that has taken over your life? Why do personal assistants go too far?