Okay, I get it. We don't want the whales from server 1 migrating down to the new server that just opened up. It's not fair. But why not the other way?
All the servers are dying. New players don't want to join old servers, they'd be out too much of a disadvantage! One of the ways that this is being resolved right now is the infamous server merges. But why should we have to wait for a server merge? If we could all migrate with everything we have to an older server, it would create an environment where people can actually leave servers that are just too imbalanced rather than just stop playing. Since they would be theoretically weaker then the people they are joining, it shouldn't be an issue. This way new people actually go to old servers, as they slowly migrate up to the top.