Lemmy.world is very popular, and one of the largest instances. They do a great job with moderation. There’s a lot of positives with lemmy.world
Recently, over the last month, federation issues have become more and more drastic. Some comments from lemmy.world take days, or never, synchronize with other instances.
The current incarnation of activity pub as implemented in Lemmy has rate issues with a very popular instance. So now lemmy.world is becoming a island. This is bad because it fractures the discussion, and encourages more centralization on Lemmy.world which actually weakens the ability of the federated universe to survive a single instance failing or just turning off.
For the time being, I encourage everyone to post to communities hosted on other instances so that the conversation can be consistently access by people across the entire Fediverse. I don’t think it’s necessary to move your user account, because your client will post to the host instance of a community when you make a comment in that community I believe.
Update: other threads about the delays Great writeup https://lemmy.world/post/13967373
Other people having the same issue: https://lemmy.world/post/15668306 https://aussie.zone/comment/9155614 https://lemmy.world/post/15654553 https://lemmy.world/post/15634599 https://aussie.zone/comment/9103641
There is a very simple explanation for this specific case: nobody on hackertalks.com is subscribed to !goodoffmychest@lemmy.world!
Most community related activities on Lemmy will only be sent to instances that have at least one subscriber for the community.