An experimental social media platform that allows users to moderate content and combat misinformation, via MIT researchers:
https://news.mit.edu/2022/social-media-users-assess-content-1116
Empowering social media users to assess content helps fight misinformation

MIT researchers built a prototype social media platform to study the effects of giving users more agency to assess content for accuracy and control the posts they see based on accuracy assessments from others. Users were able to make accurate assessments, despite having no prior training, and they valued and utilized the assessment and filtering tools they designed.

MIT News | Massachusetts Institute of Technology