I noticed that for a week or so now the community has been much smaller tham it used to be. I'm seeing an almost 90% decrease in posts, comments, and votes. Did something get defederated or did a big community go down? Lemmy stats show that Lemmy average user count is still about the same.
I've just had a look at the graphs that show federation activity. There is a technical problem that is causing sopuli.xyz, your instance, to receive data from lemmy.world slower than it needs to. Lemmy.world is where most comments and posts come from. This has been going on for over a week and gets worse every day.
Edit: it seems i can't link it to meta since your post did not federate to dbzer0.com; it would be helpful if you put the links in your post for help with troubleshooting
happened 2 times on dbzer0.com too, with 2 different issues, one on lemmy.worlds side, the other on dbzer0;
i'll link both of them in your post in meta for reference
@[email protected] did a great job with that post mortem and showed up a lot of places where federation could choke. Seems there is not much troubleshooting information easily available for lemmy admins, i hope it helps.