I sent the requesting admin from Kbin.earth screenshots and example thread links in DM, and with his or her permission, am sharing the most relevant part of the exchange here for the devs /admins:
Maeve
Compare: https://kbin.earth/m/comradeship@lemmygrad.ml vs https://lemmygrad.ml/1 week ago
blued_gear
I will take a closer look at the issue once I’m back from vacation. What I found in the server logs 'til yet was not very conclusive, except some errors coming from the Lemmy side (but I can’t say if they are the real reason).
I hear you. I’m not sure where kbin admins are, but I think it’s hosted in Germany. I don’t know if time zones are a factor, since I have no idea where .ml is hosted or where admins reside, for either instance. @blued_gear
I would guess that the ml admins / lemmy devs haven’t seen this post (tags in post bodies don’t notify) and that even if they did, at minimum they’d need the logs for:
To have any hope of saying why it’s not working properly (assuming the errors are related to the federation issues), but that ultimately the mbin devs would probably be in a better position to interpret those logs.