I woukd stay on .social. Lm is having server problems and is lagging a lot lately, .social has good communities already, if you even get in .lm you can actually follow .social communities as well but I can’t guatantee your experience will be smooth at all
I do believe this is consequence of the levels of restriction the instances have. .lm and .world as well as beehaw are different Lemmy instances moderated differently by their respective mods, but being in Lemmy they can see and interact with each other UNLESS one if these instances restrict and moderates what can be accessed and seen from them, in this case .lm has bigger restrictions to the point people from other instances can’t subscribe to their communities or interact with their posts, adding to this the server is having several downtimes, causing the comments from .lm to disappear or don’t show up if viewing it from .world
Very sorry for the confusion, you are right. I thought .ml disappearing in other instances was due to some restriction they had, but is actually how the fediverse works according to how open certain instances are to others. I experience this on Mastodon plenty and I didn’t notice is the same here. Is .world which is putting a restriction which only allows us to see only .world users and comments, while .ml is ways more open. I attributed this to .ml experiencing problems lately but I was mistaken.