If I was logged into several instances at once in the client and seeing the composite feed and then could choose instance when replying or posting (with some set default, like from: field in e-mail clients) lemmy.world could ban piracy all it wants and it’d still be in my feed without me having to leave it or change instances.
Jerboa is fairly simple in terms of its the instance that does the majority of heavy lifting.
What you’re asking for could be solved in Jerboa with some work, or you could host your own instance and get what you need now without community effort.
The only thing I really want from Jerboa is a notification when any of my accounts has a reply/message.