For example, I’m on Lemmy.sdf.org and I joined the Apple@lemmy.ml community. But there are many missing articles and comments. If I browse directly on Lemmy.ml for the same article there ~90% of comments are missing.
https://lemmy.ml/post/1152794 has 26 comments https://lemmy.sdf.org/post/11232 has 0 comments
That doesn’t really make sense though - shouldn’t comments be federated across all communities?
The person you are replying to deleted the comment. That said, as I understand it, comments are federated once someone on a server subscribes. So, not all comments will be federated. However, stuff listed in the comments here would seem to break my understanding of how federation works. I’m very curious to hear the answers.
They do. However, it’s only after federation has been established between two communities.
After a while, these newer communities will be federated in and everyone will be connected.
As lemmy.ml is the oldest community, it also has the most history (as the newer instances don’t currently get the history).
This will likely be fixed at some point.