[potato3732842]

>How do you know if a nude is unwanted? The premise itself makes no sense

If the app has sufficient permissions to infer user demographics a sufficiently jaded person should be able to come up with a set of rules that get you a 99% solution pretty easily.

[mikkupikku]

In the future, phones will refuse to take pictures of dicks unless men register their height and income levels so that useful and relevant information can be added to the image metadata.