I think that the motivation of 'enabling citizen science' is not a very strong one. You will get very, very skewed results, moreso than typical WEIRD, if you conduct studies on the people for whom that is sufficient motivation.
A stronger motivation would be providing a product or service that tangibly adds value to someone's life.
After reading this, I have no idea how Rally would provide any tangible benefits to me.
Exactly. It is so weird to see all this marketing speak that makes it sound like users can get to benefit from something, but in the end this is just something that gets people to work and provide data for free to multi-billionaire universities.
We don't any more studies or research to know that the best privacy policy is to not collect any data in the first place.
A stronger motivation would be providing a product or service that tangibly adds value to someone's life.
After reading this, I have no idea how Rally would provide any tangible benefits to me.