Most of us aren’t legal eagles. Fortunately, we are being alerted to Ancestry’s information grab by Judy G. Russell, “One big change at Ancestry,” The Legal Genealogist (https://www.legalgenealogist.com/blog : posted 4 Aug 2021).
“In plain English, the rights to use that family photo you posted, that story you wrote and uploaded, that snippet of family history you’ve shared basically now belong to Ancestry. You can continue to use it elsewhere if you wish, since you’re still technically the owner, but you can’t do anything to stop Ancestry from using it any way it wants, forever.”
Did Ancestry give specific warning it was making this change so information could be deleted from their system.? No. Ancestry is acting like the 800lb gorilla on the genealogical block.