text: On May 4, 2023, Twitter backtracked its paywall system, allowing the free posting of automated tweets by verified government profiles. In light of Twitter's decision, MTA announced its resumption of posting automated alerts on the platform.
  Emergency use
  A practical use for Twitter's real-time functionality is as an effective de facto emergency communication system for breaking news. It was neither intended nor designed for high-performance communication, but the idea that it could be used for emergency communication was not lost on the creators, who knew that the service could have wide-reaching effects early on when the company used it to communicate during earthquakes.
  Another practical use that is being studied is Twitter's ability to track epidemics and how they spread. Additionally Twitter serves as a real-time sensor for natural disasters such as bush fires and earthquakes.
  Education
  Twitter has been adopted as a communication and learning tool in educational and research settings mostly in colleges and universities. It has been used as a backchannel to promote student interactions, especially in large-lecture courses. Research has found that using Twitter in college courses helps students communicate with each other and faculty, promotes informal learning, allows shy students a forum for increased participation, increases student engagement, and improves overall course grades.