Comment by nullc

Facebook is doing a public service here by being overt.

Anyone else would just quietly take your face and those of your contacts and use it to generate an endless stream of faces which are unambiguously not you, yet compellingly familiar.

...maximizing their brainwashing effectiveness while minimizing the ick factor and triggering privacy minding behaviors.

A lot of harm is done in the world by parties adaptively keeping their invasive conduct at just below the level which will trigger retaliation, legislation, etc. Like databrokers will sell exceptionally private data to anyone with a few bucks, but it's only a 'data breach' when someone takes that data without paying. The existence of databreaches even provides nice plausible deniability for harms that arise from the business of privacy-invasion-for-profit.