Is it really really necessary to have that captcha?? Lending brain power to the worlds biggest advertising and spy operation is a turn off. Besides it sucks to sit there and click endless images of traffic lights, cars, busses and store fronts...
To help me get started, I wouldn't mind seeing an example of what the start of an idea-mining session looks like with this interface. I've never done anything like this so I could use some inspiration for how to use such a tool.
The inspiration is on the left side. It can be a title or something in the summary or comments. When something sparks an idea, click to create a new note about it.