Today kbin.social is blocking a huge list of domains just to get federation working again.
The reason for this temporally block is not to defederate, but rather to get the large backlog of 500k messenger queue processed again. Anyway, this does mean that kbin.social is federating again with other instances.
This is a temporary measure. Several users / developers are looking into how to better optimize the failed message queue, as we speak. Hopefully Ernest has eventually time to dive into solutions as well instead of workarounds, once his instance is migrated to Kubernets. See my preview thread: https://kbin.melroy.org/m/updates/t/4257/Kbin-federation-issues-and-infra-upgrade
List of the domains causing trouble:
lemmygrad.ml, eientei.org, vive.im, lemmy.ml, lemmynsfw.com, kbin.lol, lemmy.webgirand.eu, tuna.cat, posta.no, lemmy.atay.dev, sh.itjust.works, kbin.stuffie.club, kbin.dssc.io, bolha.social, dataterm.digital, kbindev.lerman-development.com, test.fedia.io, mer.thekittysays.icu, lemmy.stark-enterprise.net, kbin.rocks, kbin.cocopoops.com, kbin.lgbt, lemmy.deev.io, lemmy.lucaslower.com, lemmy.norbz.org, social.jrruethe.info, digitalgoblin.uk, pwzle.com, lemmy.friheter.com, federated.ninja, lemmy.shtuf.eu, u.fail, arathe.net, lemmy.click, thekittysays.icu, lemmy.ubergeek77.chat, lemmy.maatwo.com, faux.moe, eslemmy.es, seriously.iamincredibly.gay, test.dataharvest.social, programming.dev, kbin.knocknet.net, pawb.social, lucitt.social, longley.ws, kbin.dentora.social, atay.dev, lemmy.kozow.com, ck.altsoshl.com, pawoo.net, techy.news, lemmy.vergaberecht-kanzlei.de, lemmyonline.com, beehaw.org, pouet.chapril.org, kbin.pcft.eu, fl0w.cc, lemmy.sdf.org, lemmy.zip, feddit.dk, fedi.shadowtoot.world, lemmy.noogs.me, lemmy.kemomimi.fans, social.agnitum.co.uk, fediverse.boo, hive.atlanten.se, forkk.me, lemmy.ghostplanet.org, lemmy.mayes.io, lemmy.mats.ooo, lemmy.world, lemmy.sdfeu.org, lemmy.death916.xyz, geddit.social, masto.fediv.eu
If they’ve temporarily defedorated already then they won’t see you comment. Obviously this one isn’t nearly as drama-filled, but here’s the post about what being defederated means from when beehaw did it:
https://lemmy.world/post/149743
Ignoring the commentary parts, the technical explanation of what it means should still apply here.
Correct, hence you don’t want to defederate too long. Also there are possibilities to backfill data again. Meaning you are able to fetch older posts and comments again on your instance, restoring federation.