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.
No worries, and I completely sympathize with the situation. My hat is off to you site admins, and the lemmy devs, for keeping things afloat these past couple of weeks, often at great expense of both time and money. I am confident that all of these kinks will be ironed out in the coming months, and in the meantime I am happy to have a few alts to hold me over.