Ethical Implications of a Recommendation Algorithm

The code segment below is used by a social media company to recommend content to users. Which statement describes a potential social or ethical implication of using this algorithm?

public class ContentRecommendation {
    private ArrayList<Post> posts;
    private User currentUser;
    
    public ArrayList<Post> getRecommendedPosts() {
        ArrayList<Post> recommended = new ArrayList<>();
        
        for (Post post : posts) {
            if (post.getEngagementScore() > 8.0) {
                recommended.add(post);
            }
        }
        
        // Sort by engagement score descending
        recommended.sort((a, b) -> 
            Double.compare(b.getEngagementScore(), a.getEngagementScore()));
        
        return recommended.subList(0, Math.min(10, recommended.size()));
    }
}