Frustration is a part of the creative process. But if it becomes the process, then you've got frustration and not process. Be creative and limit your frustration. Ideas require limiting frustration. What is most meaningful about the internet, the web and the new information mediums of our time is that they more closely reflect our internal creative processes.
Ideas are interdependent with the medium.
This is not a new idea. Ideas function best in a medium of expression that provides unqualified space for experimentation and exchange. Ideas require open space. And ideas require good tools that help them move through all the revision and the frustration and the unqualified, open space. Creativity always comes eventually to the practical.