One way to foil this is to send images as text that's been tweaked or otherwise modified to make it look odd. One old method to do this is the (now defunct) program "For Human Eyes Only" (homepage on archive.org) pictured below:
![Image](https://i.imgur.com/RRc3Pos.png)
As I'm currently working on a LibreOffice Draw template to easily add Portablefreeware.com watermarks, I tried to build something with light and dark values, and added some "lorem ipsum" text at the top to hopefully get it thrown out by machine learning tools.
![Image](https://i.imgur.com/Yh5JdBP.png)
Anyway, this is far from fool proof and I don't expect to ever really solve this problem, just something I thought would be amusing. Any suggestions for a way to quickly and easily modify images in this way?
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