This is already possible on a per-server basis. Beehaw already does this.

It would be interesting to make it a per-community feature though.

Personally I prefer soymilk and almond milk for cereal, but I’ll stick to regular milk products for most sauces/cooking.

I’m pretty new here. I’d say the concept is the same in the sense that they are each their own community run by their own moderators. However, the all powerful Admins are those in control of the instance.

One interesting example is that Beehaw has started making “Bee themed” community icons which makes it easy to tell when you’re looking at one of the communities hosted on their instance.

Someone on Lemmy.world could have another community with the exact same name, you just have to pay attention to the end (and having themed icons also helps).

But it goes even a little farther than that. We can end up with Mastadon (twitter equivalent) users who are also able to comment in these communities. I don’t think its working in reverse yet (at least not for Lemmy.ml accounts).