Pretty cute, Parson. Great photo of great-looking kids.
*****
Anti-share? You've lost me there I've never encountered that on flickr
I guess "Anti-share" is a clumsy term, on my part.
So...
Flickr's goal was to have the user share the whole page, surrounding your image, with all the ads and logos, and whatnot; which is great if you want your friends to be able to browse your whole collection.
In the case where you just want to embed
only the single image file in a post on a different server ; you have to be able to isolate the URL for the actual image file. (as opposed to the URL for the page which contains it.)
Normally, you "open image in new page" in your browser. Then you have the specific URL for the image file, only, in the address window of the new browser page.
Flickr went through a series of schema to prevent the user from isolating the lone image file: deactivating the "open image in new page" function, and others. I don't remember the details. I remember, at one point, actually needing to read through the HTML source code in order to ferret out the image location.
I haven't looked at my Flickr account for a couple of years, so I have no idea what it looks like now. I no longer need that function.