#TwitterMigration. #Twittershutdown. #TwitterIsDead. These trending hashtags pose a looming threat – is this the end of Twitter? The speculation comes as a growing number of Twitter employees resigned after a deadline to remain at their jobs or quit. Twitter also announced it was closing office buildings and disabling employee badge access through the weekend, The New York Times reported. Many users have started downloading their Twitter data with the announcement prompting "just in case" tweets of users sharing other social media profiles and plans to move to other sites.