Most of these companies wouldn't know how to make much use of the data anyway. My experience working with companies and analytics (even did an analytics startup some years back) is that they haven't a clue about how to actually use it and just heard that more data is somehow better.
That to me sounds like they're most likely to sell the data, since they don't know how to use it themselves. Better these companies have less data, not more.
That to me sounds like they're most likely to sell the data, since they don't know how to use it themselves. Better these companies have less data, not more.