Fediverse

I'm not sure if this is the right place to post this, but I'm curious about something. I've seen there's a big debate about multiple communities for similar content on different instances, and whether they should coalesce into a single community or remain as multiple communities. I also saw a post about linking sibling communities with automatic cross posting and stuff. I'll level with y'all, I understand coding about as much as I understand wtf quantum foam is. So I don't know how likely that is, or how easy it would be to implement.

But why couldn't we just link to sister communities in the community sidebar. Like reallycoolawesomestuff@lemmy.world could just have a link to reallycoolawesomestuff@lemmy.ml in the sidebar, and vice versa?

I haven't seen any of the communities I frequent do this, and I just wonder why. If both communities did it, it would likely increase the user base of both, wouldn't it?

Sorry if this is a dumb question, I'm just loving on lemmy lately, and wish it were easier to quickly find related communities.