It would be nice to easily see memories added by other. This could be done on the People page. There is already a filter "Added by me". How about the opposite "Added by others"?
Just in case you were not aware ...
The "Memories" ADDED by OTHER Users/Patrons ALREADY appear on YOUR 'FamilySearch' "Home"/Landing" page/screen, when you "Log In".
Here are some "Knowledge Articles" in 'FamilySearch':
What features are on my home page?
Where it states:
The FamilySearch home page offers ways to discover your ancestors and share family memories.
When you sign in to your FamilySearch Account, personalized opportunities appear on the home page:
How do I remove a photo or person from my home page?
I hope this helps.