Algorithm, Search & Distribution
Don't recommend channel
Also called: block channel recommendations
Viewers reach it from the three-dot menu on a video, or from the same menu in the Shorts feed, where it sits beside Not interested. Choosing it stops that channel turning up in their home and suggested feeds. They can still search for it and subscribe later.
There is no strike and no notification, and Studio reports no figure for it, so a creator worrying about how many people have used the control is worrying about something nobody can see, measure or appeal.