Hi. As far as I can tell, none of my posts or comments from here are reaching kbin.social. I first noticed this about 3 days ago, trying to post comments to !fanfiction@kbin.social from here.
What's strange is that lemm.ee and lemmy.world seem to be federating perfectly fine, as do lemmy.world and kbin.social. This post I just made from lemmy.world is visible on both lemm.ee and kbin.social, but this post I made from lemm.ee yesterday only shows up on lemmy.world, not kbin.social. Both lemmy.world and lemm.ee are on version 0.18.1 right now, so I doubt it's related to the 0.18.0 Kbin-Lemmy federation issues. I'm also assuming the two instances are not intentionally defederated.
I can provide more details if needed. For now, I'm considering making an account on kbin.social to manually bring over some of the affected posts/comments. Either that, or reposting the content through my lemmy.world account.
Edit: made a kbin.social account. Seems like lemm.ee can view kbin.social comments, just not the other way around. As nice as the threadiverse is, it seems like there are still quite a few technical headaches to deal with at this point in time...
the fediverse has done a great job replacing reddit for my scrolling-though-random-stuff needs! as for more niche stuff, it's still not there yet (as has been pointed out many, many times already), but i'm trying to help! i'm posting and commenting regularly on !kirby@lemmy.world. "be the change you want to see" and all that. i encourage everyone else to do the same with their niche communities!
edit: though at this point i have 4 accounts across different instances (here, lemmy.world, kbin.social, feddit.online), thanks to various things. so it's not entirely smooth sailing for me right now