Read the threads in YPTB, they contain more context:
https://lemmy.dbzer0.com/post/67441443
https://lemmy.dbzer0.com/post/67441443
In short MrKaplan lead admin of Lemmy.world has engaged in Zionist apologia and knee jerk defederated anarchist.nexus over personal feelings. He refederated but not before spouting a shit ton of Zionist apologia.