They are part of the Fediverse Tankie Triad and therefor a bunch of insufferable gobshites. For more context, enjoy what the other people in this thread will tell you. I blocked lemmy.ml, lemmygrad.ml and hexbear.net.
Dang, but thanks for the explanation! Is there a specific reason why some instances chose to defederate from them? I know about the grad triangle, but that's absolutely reasonable. ^^
Sieht ganz danach aus, dass deine Instanz Hexbear deföderiert hat (was ich gut verstehen kann). Also nein, liegt nicht an dir.