I don't think there is such a thing because a premine off the bat has negative connotations and you are going to have to prove yourself to the community. Look at how much flake DeepOnion has gotten and they are nearly done their airdrops. Yet people still think that is a scam! That is why I think the onus is squarely on the preminer and I think it is a fun challenge to have to proof yourself, because after all you will have majority of a currency there is no reason random people should trust you.