Titles should not be manually selected or deselected in WorldCat knowledge base collections that have automatic collection loading turned on because this can break the feed that updates the collection.
Manually selecting or deselecting a title can cause the feed to completely stop working since the Knowledge Base team would then have to turn the automatic updates back on in order for it to function correctly again.
Note: If the autofeed from the collection provider remains intact after the title is manually removed; Deselecting a title in an autofeed may be overwritten once the feed is updated by the provider. To request a title be removed from an autofeed collection contact OCLC Support.