The best way to manage the number of social profiles in your library is by hiding anyone who posts irrelevant content to free up space.
Hiding Content from Social Profiles
Follow these simple steps to hide content from a specific social profile:
Find an asset in your Content view created by that Social Profile and click to open the asset's [...] menu
Click Hide content from @socialprofile
You'll see a confirmation message at the top right corner of your screen
Unhiding a Social Profile
If you decide you want to see content from a previously hidden profile again, you can easily unhide them.
Hover over your left tab menu
Choose Settings from the list
Go to your Workspace tab
Click on Hidden Social Profiles
Click on Unhide beside the Social Profile