4chan is a bit special when it comes to government orders.
For example, they have a (heavily limited) de-facto warrant canary. Since damn near all of them specify that no data should be deleted for a period of time, posting is disabled on a board, or the entire site so nothing gets deleted.
They also disallow posting of files with embedded data (based on some heuristic) and either strip exif data, or forbid posting images containing it. (the exif stripping thing comes from people accidentally doxing themselves by posting an image from facebook a few years back)
For example, they have a (heavily limited) de-facto warrant canary. Since damn near all of them specify that no data should be deleted for a period of time, posting is disabled on a board, or the entire site so nothing gets deleted.
They also disallow posting of files with embedded data (based on some heuristic) and either strip exif data, or forbid posting images containing it. (the exif stripping thing comes from people accidentally doxing themselves by posting an image from facebook a few years back)