If I delete my pictures on Flickr, they are no longer available......they cannot be seen. I am sure that if I deleted my stuff on here there would be the footprint of it in cyberspace, but the content would be gone.(the search engine takes you to the site where the stuff was originally...so if it had been deleted then it's substance would be gone)
And at some point I
may just do that
As for your Mum, I am sure you know how to keep her sweet