Because we can. Because that’s how federation works. If you don’t like this instance, go to another. Or make meaningful strides to make this one what you would like. Beehaw already defederated from Lemmy.world, so I can’t even see it. It’s just a preference and if there is no activy at any given instance… Then that’s fine. Maybe each find its own community preferences and rules. Maybe you just participate in both like many people are.