@hypolite I haven't looked at all posts in this thread, so this might be said somewhere: We are transmitting our posts with LD signatures and the thread starter always relays all incoming posts. Posts with LD signatures can be checked without the need for a valid HTTP signature. So at least amongst Friendica users this shouldn't be a problem. And since we also support signed HTTP requests, other system that don't support LD signatures could perform a signed request to check the validity of the relayed post.