There is no guarantee that people who post projects on Kickstarter will deliver on their projects, use the money to implement their projects, or that the completed projects will meet backers' expectations.
Kickstarterでプロジェクトを創設した人達が自身のプロジェクトを実行するために資金を使うことや完成したプロジェクトが後援者の期待に沿うものになる保証は無い。