I agree whole-heartedly.
I was about to say that there should be a time limit on that sort of thing. As in, if, for example, the Spanish claim that island, then don't send in Settlers to start using it after a certain number of turns, then they must relinquish their rights to it so someone else can have it. The reason being that it's too easy to imagine the AI (or a human player, for that matter), just going around and claiming all the land it finds without ever following up on it. So before you know it, all the land in the world is claimed by somebody, but nobody is actually using it.
As I say, I was
about to say that. Then you had to go and bring up the Siberian Question, as I like to call it. That is, as a frequent player of real-world maps, I absolutely hate the way the AI always turns Siberia into a hideous patchwork quilt of unconnected and useless cities. Allowing the first civ that gets there to simply
claim the land and get it over with would be a perfect solution to that. It would be more like the real Siberia, owned by someone and therefore off-limits to settlement by anyone else, but still not really being used much.
So maybe time limits aren't the answer. Still, there needs to be some way to keep that in check so all the civs aren't just claiming all the land they see. Well, like you said, it will take some thought.
