Comment sections filled with low-effort link spam degrade the community experience. YouTube's Official Policy and Penalties
: Creators use bots to ask other channel owners to subscribe in exchange for a subscription back. youtube comment bot link
Using "spintax" (e.g., Hey great video! ) to vary comments and avoid being flagged by basic spam filters. The Dangers of Using Comment Bots Comment sections filled with low-effort link spam degrade
Dropping links to other YouTube channels, websites, or products. youtube comment bot link