Mapillary does not have and is not selling personal data. Mapillary's main dataset is photos of (public) streets, and as openly licensed it was available for Facebook's use even before this sale.

That‘s correct. They can collect more data about mapillary users now, however. Not a good thing. I don‘t think I’ll contribute to Mapillary in the future.

Please consider contributing to OpenStreetCam instead.

https://openstreetcam.org/map/

OpenStreetCam seems to be owned by "Grab Taxi Holdings Pte. Ltd." based in Singapore. Bloomberg writes: "The Company, through its subsidiaries, develops mobile application software to book a taxi and other vehicles for transportation from one location to other. GrabTaxi Holdings serves customers in Asia."

Where can i find more information about openstreetcam? Why does OpenStreetCam use the CC-BY-SA License and not the ODbL license?

It's on my todo list, to start running OSC again, as soon as I start driving places again. Car's still got gas in the tank from February...

I don't think the personal data of (the few) Mapillary users is of any interest to Facebook either. What they need is the personal data of the masses and for that they already have and keep growing Facebook, Instagram and Whatsapp, and in that they are free to take advantage of any Open Source and Open Data like anyone else.