The author examined the distribution of instances in the fediverse. Given that many instances are hidden behind CDNs like Cloudflare or Fastly, the author employed ActivityPub’s functionality to discover the actual hosting locations of servers. More than half (51%) of the fediverse is hosted within a single hosting company. The author suggests that the fediverse hosted mostly with a few major providers, deviates from its initial objectives.
A regular court order won’t be granted unless there’s very good reason.
And it won’t be issued to cloudflare to “delete everything that uses ActivityPub”, because that’s insane. And would require a bunch of manual engineering work.
And being distributed through cloudflare tells you nothing about where the files are stored. Because they’re a CDN.