根据网络状况监测网站DownDetector的用户报告，截至美国东部时间下午6:27，在美国共有5,968名用户反映社交媒体平台“X”出现问题。

Core Insights - The social media platform "X" experienced issues reported by 5,968 users in the United States as of 6:27 PM Eastern Time according to DownDetector [1] Group 1 - A total of 5,968 users reported problems with the platform "X" [1] - The monitoring was conducted by DownDetector, a website that tracks network status [1] - The timing of the reports was noted as being specific to Eastern Time in the United States [1]