Youtube Subscription Feed Cleaner
There should be a popup that comes when you open youtube asking if you want to unsubscribe from a specific youtuber since you either haven't watched a specific amount of there videos or haven't watched there videos for a number of days. there can also be a "Don't ask me again" button in case they want to stay subscribed but doesn't want to watch there videos.
This may not be a big problem but sure is one that should be solved.
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