I still don’t get it. If a r/pics mod goes to lemmy.ml and makes c/pics, I can go to lemmy.ca and make c/pics, and you can go to kbin and make m/pics. You’re right that probably one of those pics communities is going to end up being the favorite but that doesn’t mean the others can’t post good relevant content. Also no one needs to “move communities” you can subscribe to every version of pics that that exists. I’m subscribed to multiple different communities of the same topic because each of them are going to have their own slant or take on the topic. Over time the content and comments will be what determines my favorite of them, not which is the biggest.

On the fediverse I think content is king, much more than anywhere else, simply because there can be so many versions of the same topic. The one that rises to the top will be content based, not based on server or who the owner is. I can create 50 communities, but can I post 50 communities worth of good content and foster 50 communities worth of good comments? I mean, maybe. But probably not.