i could write a lengthy comment here but to be brief: this is a great example of how a lack of good mod tools can basically ruin everyone's experience in a federated system. both kbin and lemmy lack them so both become vectors of abuse and sincere users suffer because of it. everyone is worse for the lack of tooling here and it all but necessitates walled gardens or huge numbers of mods.
Appreciate the level-headed reply in this thread. There's a lot of fingerpointing and hostility going on and I'd appreciate it if people would make less assumptions / jumps to attack people. I'm not sure if you or anyone else can confirm, but I agree with ernest that federation of mod actions was working once before. Without knowing exactly why it stopped, it's hard to say what is going on.
For instance, I just coordinated with the admins of startrek.website as their latest maintenance started blocking user agents with curl in it, which is what kbin sends, meaning all kbin instances stopped being able to get images from their instance. It seems like this is true for multiple other lemmy instances. I didn't follow up with any other admins at the moment, but I think from that, and the fact that back when I originally signed up people would constantly complain kbin federation was broken when it was lemmy.ml that was blocking kbin, it's not a good idea to jump to assumptions on why something isn't working.