I'm not sure what ernest is referring to with that, but something definitely does seem to be up with federation of content from kbin over to lemmy.
e.g. in /m/anime_irl the last three threads posted have not federated out. I commented here with a list of 5 lemmy servers I checked on a 24 hour old post that hasn't shown up elsewhere (after noticing my own post wasn't showing up).
There's also something going on with comments added by lemmy users on threads that have federated not going out to other lemmy instances. e.g. on this thread from 5 days ago only my first comment has federated widely; the other comment chain (starting with the user from lemmy.world) are only visible on kbin.social and lemmy.world, as far as I can tell. Not sure if that's exactly the same issue or not, but seems plausible for it to be related if something isn't working correctly with federation right now.
Comments that I've made on lemmy threads have gone through today though.