[nickvincent]

I think it's pretty reasonable that many users might perceive this as a betrayal of an implicit social contract. People posting things ten years ago, or even a year ago, shouldn't have had to make projections about future modelling advances / how data might be used in the future.

IMO: Renegotiating for "public approval" will always be something computing organizations have to engage with when making advances in tech that's downstream of publicly created records, knowledge, etc.

(That being said, I personally think this announcement is overall a win for healthier data flow, in particular because these kind of deals make the value of data explicit.)