I don't know if such a subject has ever been discussed.
I found several subjects approaching it but not exactly this one.
The subject is about some kind of warranty a user having spent a few hundreds of euros in devices, electronics and internet subscriptions as well as lot of time building his part of the Thing network won't see his data robbed by a Google or another IBM.
How is it possible, as the same time, to make the community benefit from data collected by members and to sell them to big companies?
Cheers,
db