Not from what I've seen, unfortunately. Getting new instances to federate, at least from smaller, non Lemmy instances, is a bit of a pain. In the past I've done some testing with the two mags I currently own, and it looks like things don't always properly federate.
I've also noticed the same goes for voting. There's been more than once I've seen differing upvotes/downvotes on a thread depending on whether you're looking at it from kbin vs mbin.
Have you been successful in obtaining ownership or moderation to any abandoned mags? I've requested to a couple that I occasionally participate in just in case they get targeted for spam, but I haven't heard yea or nay either way.
Well that explains why a couple threads I posted weren't gaining any traction. I hope the issue gets figured out soon, otherwise I'll have to use my Mbin alt for anything lemmy.world related.
I've been wondering the same thing. I really like kbin's interface, so I'm holding out that he comes back before I think about trying another instance.