The currency website www.nextcoin.org and NXT echange platform DGEX.com are both hosted by the same company that appears have produced the currency.
That's Graviton Capital Inc.
By checking the WHOIS info on these websites the admin of both is goldtails@gmail.com

By googling that emailadress I discovered other websites that are adminned by this guy:

http://www.ipaddressden.com/email/goldtails@gmail.com.html

http://www.webboar.com/whois-email/goldtails@gmail.com

These are domainnames of gambling websites that look like scams.
The one that caught my eye the most is: www.ponzigame.com
PONZI GAME...

Above all that: in the terms of DGEX.com NXT exchange website it says that all BTC tranfered in to your DGEX account will become property of DGEX.com
So if DGEX.com decides to take all the BTC and close the website there is nothing you can do about it.