Lets say I want to ask Lemmitors a question. There might an AskLemmy community at my home server so I can ask there. But there might be a much larger AskLemmy community on a server elsewhere. Is there a way to ensure that people who subscribe to AskLemmy on the other server could also see my post on AskLemmy on my home server ?
I believe we're called "Lemmings".
Besides that, I think OP is asking whether certain communities could be joined together (say one mirrors the other, or one redirects to the other), but I suspect this cannot work the way the Fediverse works.
Still, an excellent question!
That's not really how I interpreted the question. I think he just wants to show all the "ask lemmy" communities in one shared feed. You could even have posts that link to the same link collapse together, like tabs for which instance's comments you're reading.
That would be neat and would make Lemmy feel much larger. And it would all be in the client end right?
Sadly though.
Right now the communities are heavily fragmented (sadly).
Combined there would be a better discoverability and mods could apply their own rules on posts but all posts would be mirrored if they pass the mod queue.
I like lemmites.
Personally, I'm a Lemimist.
Reformed or First Adventist?