This means that nearly 8.5 percent of Twitter users could be robots who never use the service, ValueWalk reported.
The document pointed to mobile applications that the users connect "with no discernible user action involved".
"There are a number of false or spam accounts in existence on our platform. We estimate that false or spam accounts represent less than five percent of our Monthly Active Users (MAUs)," the SEC document read.
"However, this estimate is based on an internal review of a sample of accounts and we apply significant judgement in making this determination," it added.
Twitter's SEC documents show that out of their 284 million users, 24 million are apps or pieces of software connecting to the platform.
"Over 11 percent of all Twitter users connect to the application through third-party software such as Tweetdeck or Hootsuite, potentially Twitter's most active users. Within this 11.5 percent is the 8.5 percent that doesn't do anything," the report noted.
Here is an excerpt of Twitter's US SEC filing:
Written with inputs from IANSOur metrics are also affected by mobile applications that automatically contact our servers for regular updates with no discernible user action involved, and this activity can cause our system to count the user associated with such a device as an active user on the day such contact occurs.
The numbers of our active users and timeline views are calculated using internal company data that has not been independently verified. While these numbers are based on what we believe to be reasonable calculations for the applicable period of measurement, there are inherent challenges in measuring usage and user engagement across our large user base around the world. For example, there are a number of false or spam accounts in existence on our platform.
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