Because it's quite literally one of the things he's responsible for at Twitter, by his own choice and description of his role (https://twitter.com/elonmusk/status/1656748197308674048).
it's a 429 error, so the developer who posted this is an idiot. they're not even wrong. the 429 doesn't even touch twitter's infrastructure
https://blog.twitter.com/engineering/en_us/topics/infrastruc...