You can have whatever token you want with all the metadata, licensing and ownership information you want... ...unless you plan on only seeing images in your own platform, nobody gives a shit, people will take screenshots and image files and share and use them however they want. There's no world in which you load a full DRM plugin or do 4 different types of handshake with a full blockchain just to load a jpeg into a comment.

When it comes to public outreach, the question is more “why not?”

World actually.

You mean original app signature?

I bet that information was already available to business owners. In other words, they totally knew it was you complaining about the toilet paper they used for example.