I'm rising to the bait again but for some of you, this may get around your problems with shared photos etc.
Like so many others I provided others with access to my own research which included all documents, photographs etc
I too find that they also pop up all over the place... usually where they don't belong.
On almost a dailly basis, I would receive PMs.
"I can see from your tree that you have a photo/marriage/death cert for a certain person. Can I have access please"
I would respond and ask the contact how she/he is connected.
Very rarely did that person come back with a reply
About 2 years ago, I made a decision
To make my fully documented tree both private and unsearchable!
It means that it cannot be found, not even on an Ancestry search!
No one knows that it exists!
However, every 3 or 4 months, I export a fresh gedcom from it and upload it to Ancestry.
It's still private but can be found.
As soon as it appears on a search, I delete it's pre- decessor
The copy tree is still private, but will be found on a search.
As gedcoms cannot transfer images, most contact that I receive now, is genuine.