As per this post, it seems Lemmy World is having federation issues. I've had some of my posts and comments get suspiciously low response, so I've looked into it and it turns out that many of them aren't showing on other instances.
Here's an example: my Payday 3 post is only visible on Lemmy.world:
Meanwhile, in other instances, it doesn't show up at all:
It's not clear if this issue is exclusive to this instance but I thought I'd give people a heads up. I reposted and now it showed up in other instances. If you feel like you're getting no response from other communities, check on another instance if your content is visible, otherwise repost it.
Just wanted to let you all know that the federation with kbin.social is working fine.
I'm not sure, I can't see their original Payday 3 post, only the reposted one. Looking a little closer, they might have just deleted it since I can't see it from lemmy.world either.
It might be interesting to have one of the monitoring tools that people are banging check on post latency between various instances.