Which of the following is a reason why you would want to add a moderate stream for YouTube in your Hootsuite dashboard:

to automatically flag comments that contain keywords that you’ve pre-defined in your YouTube settings
to view analytics on your YouTube channel and videos
to limit the number of videos shown in a stream (per 24 hours) to below the threshold you define.
to vet incoming comments on your channel or specific videos by approving or deleting them
to curate unoffensive video content that will resonate with the broadest possible cross-section of your audience