Right?! Why isn't that clearly disclosed? And the use of 3rd party data? Admitting to collecting and sharing it is only half the equation. I don't ever recall seeing a data use disclosure but I sure wish I would. People deserve transparency.
Discussion
They probably do disclose in terms and conditions that nobody ever reads.
“Share data with partners” or some similar bs.
I've read admissions of collecting & sharing data but never of acquiring it externally & using it for enhancement of their own product. If "sharing" means mutually, that should be clarified. I dont know. It's just something I think should exist, even if nobody reads it.