Musk last month moved to terminate his agreement to buy Twitter, accusing the company of breaching the deal by making misleading statements about the number of bot accounts on its platform and withholding information that he claims could help him evaluate the issue. Days later, Twitter filed a lawsuit against the billionaire, alleging that he'd violated the agreement and asking a court to compel him to follow through with the deal.

In addition to doubling down on concerns about bot accounts, Musk's responses also criticized Twitter's use of monetizable daily active users, a metric Twitter publicly reports to advertisers and shareholders to represent its growth.

Musk claims that his evaluations show only a small portion of the users Twitter considers mDAU actually generate significant revenue for the company by viewing and engaging with advertisements, alleging that the measure is not actually as good an indicator of future revenue growth potential and long-term performance as Twitter's public filings imply.

"Twitter also does not publish the methodology it follows to determine its mDAU count, or how it excludes nonmonetizable accounts from that metric," Musk's answer states. "Thus, it is extremely difficult for any third party to completely recreate Twitter's mDAU calculations."

Musk's answer alleges Twitter leadership has incentives to report "high mDAU numbers to stoke investor interest" and because its executive compensation structure is based partly on mDAU.