Main Reasons
Disinformation
Troll farm / Troll factory: Is a institutionalized group of internet trolls that seeks to interfere in public opinion and decision-making.Some governments worldwide paid 'keyboard armies' to spread propaganda and attack critics, manipulate public opinion and disseminate disinformation.
Facebook, Instagram (owned by Meta Platforms); TikTok (owned by China's ByteDance), X (formerly Twitter, owned by Elon Musk), YouTube (owned by Google), etc., are failing to curb the spread of disinformation on their platforms.
Algorithms
Social media companies use algorithms for a variety of functions on their platforms, including to decide and structure what flow of content users see; figure out what ads a user will like; make recommendations for content users might like.Privacy and Security
Metadata / Privacy: Personalized recommendations based on thousands of data points social media collect about their users.Concerns over its privacy, terms of service and security policies.