Many people browse the Explore tab more than their home feed. Even if they don't follow these people, they still may see the post and even without "liking" it i

Many people browse the Explore tab more than their home feed. Even if they don't follow these people, they still may see the post and even without "liking" it it will up the posts "impressions" (business accounts can see these stats). Brands buy ads for exactly this reason. Influencers are the same.