If the tools don't work, why do they exist? They exist to exploit you. Using these "online viewers" poses three significant risks:
While you cannot bypass a lock to see private posts, you can take steps to get a better look at a public profile picture without using shady tools. facebook locked profile picture viewer online top
If you are interested in this topic academically, consider reframing the paper as: If the tools don't work, why do they exist
“An Analysis of Social Media Privacy Circumvention Scams: The Case of ‘Locked Profile Picture Viewer’ Claims” “An Analysis of Social Media Privacy Circumvention Scams:
Outline: