Some "free" services operate on exchange networks, where users are forced to subscribe to others to earn "credits" for their own channel, often referred to as "Sub4Sub".
If the subscribers stay, go look at your analytics. In YouTube Studio (2021 version), you will notice: free youtube bot subscribers 2021
: Creators would see their sub count climb, but their view counts stayed at zero. This created a "Zombie Channel"—a high sub count with no engagement, which signaled to YouTube that the content wasn't worth recommending. The Great Purge of 2021 Some "free" services operate on exchange networks, where
While searching for "free youtube bot subscribers 2021" will lead you to several services that claim to automate growth, using them is widely considered a major risk to your channel's health and longevity. YouTube’s strictly prohibits artificially inflating metrics through automated systems. Why Free Subscriber Bots Are Often Avoided This created a "Zombie Channel"—a high sub count