What does "significantly premined" constitute (e.g. what percentage?) and how is Ethereum not significantly premined when it had an ICO of most of the coin supply and another pure premine for developers of I think 12%?
The original intent was to to distinguish country coins that had a very huge premine (like Auroracoin's 50% premine). In Ethereum's case as long as the ICO coins are in the public's possession, I don't think the premine distinction is necessary.
So significant/huge >12%?
The developer premine coins aren't in public possession (unless they dumped them? but I'm not sure if the rules even allow that yet).