Earlier quoted context omitted.
Twitter's methodology for checking bot accounts is clear, consistent, and has been detailing in its SEC filings for years. Anyone that cared could have easily double checked them. Recalling from memory, all they did is take a random sampling of accounts and have a human rate the accounts as a bot or not--back when Twitter had an API it would have been even easier to do this.
No. Nobody outside of Twitter can repeat the analysis. First, only Twitter knows which users are active (the population being analyzed are the DAUs). People doing bot analysis from publicly available define activity based on the account tweeting, which will probably skew heavily toward spam bots. Second, the mDAU metric is the DAUs with known bots having been removed. Nobody outside of Twitter knows which active acco…
So it cannot be replicated by third parties, and Musk does not know what he’s talking about (shocker!), but it can be verified a posteriori. And I assume it will be at some point.