Huss
Veteran
Why would galleries and museums allow established photographers to use these platforms if facebook and instagram own the rights their images after posted to these platforms? If what you are saying is true, we would not see any established photographers (who make a lot of $$ from their photos) using these platforms at all. You are correct in saying their business is collecting data and selling data...but they cannot sell your photos or make a book of your photos or decide to open a gallery with your photo.
https://www.facebook.com/notes/andy-rouse-photography/facebook-picture-rights/270204724175/
Yes they can. I've met w copyright lawyers, part of my work dealt with privacy and rights issues etc etc.
Famous photogs are already monetizing their works and use social platforms to keep themselves in the news so to speak. They either have weighed the risk/reward ratio, or - be shocked by this - have no idea that their work can be reproduced.
The saving grace is that they are not posting full Rez images. The downside is pretty soon uprez software will be able to take even small crappy low Rez stuff and so with it what they will. Also, big companies like Apple, FB etc already have uprez software that does this that is not (at the moment) commercially available. It's how Apple can run those billboard shot on iPhone ads.
Anyway, a heads up. Feel free to ignore.