At least once a week I receive an unsolicited request to fund a project. These messages are rarely offensive in and of themselves–they’re usually just information about the project and a paragraph or two of generic “please help us out” text–but they’re still spam. They’re usually sent to a blind carbon copy list, but occasionally someone will screw up and send it out via plain CC, exposing all the email addresses they’ve targeted.
This is spam, plain and simple. Kickstarter needs to decide if it’s the kind of company who wants to allow this (in order to potentially make more money in the short term, ala Facebook, at the expense of user satisfaction and damage to their brand) or come down hard on it (do the right thing for their users AND backers). I know what I hope they do.