If you'd like your clients to continue seeing items they have disliked (instead of hiding them), you can easily adjust this in your Project Settings!
Step 1:
Click the Settings gear icon in the upper right corner of your project.
Step 2:
Select the Clients tab. In the "What Clients Can See" section, make sure "Disliked Options" is toggled on.
Step 3:
Click the "Apply" button to save your changes.
You're all set! Your clients will now be able to view any items they have disliked directly in their Project view.