[speedplane]

The issue with facebook is not that they simply hold a copy of your data after your relationship ends, but that they have permission to continue using it. Few content creators would object to Facebook keeping a random copy of their content on a tape drive. It's like a book publisher keeping your a copy of a rejected manuscript in a warehouse somewhere.

The real problem is when Facebook uses that content to further their business interests. Likewise, the publisher shouldn't be sending that rejected manuscript around for others to mine for ideas.

(that said, to avoid the temptation that gives rise to this precise problem, it's common practice for publishers to return rejected manuscripts)