You're being far too liberal with your whitelist here.
NXT is 100% premine scamcoin & closed source.
Any premined coins should go on the blacklist, imo.
I come close to agreeing with you after finding that is is affiliated with ripple, however, here is the "" source
https://bitbucket.org/JeanLucPicard/nxt/src/ and it is being mined so it couldnt be 100% premined.