Hmmm....maybe because NXT is one of the few crypto-currencies that still embody Satoshis vision of financial empowerment for everyone, using an open, transparent and de-centralised system?
Check out the Nxt wiki for some more insight into NXT:
http://wiki.nxtcrypto.org/wiki/Nxt_Wiki
and the vision of BCNext (the original Nxt dev):
http://wiki.nxtcrypto.org/wiki/BCNext%27s_Plan
At this stage of the game, after almost 2 years and a massive amount of development, calling NXT a scam is pretty much the same as calling BTC a scam.
It simply makes no sense, and is incredibly short-sighted.
(and, no, I don't believe the message on Nxt came from SN, I think it was a test from one of the mobile payment platforms)
nxt is just another scam
Jeff Garzik (bitcoin developer) and other professionals in the industry looked at the code and determined it was a scam. Also the NXT "ecosystem" largely consists of uncompleted ponzi schemes started by an anonymous person.
Evil Dave just spams Bitcointalk because he has 50 million NXT reasons to do anything to increase the price. He missed his chance to cash out millions like his friends did. NXT has destroyed many lives in crypto. A small handful made millions but everybody else lost.
Hashes do not match, the "open source" NXT that is available to download is not the same as the NXT that everybody downloads on their desktop, which contains probable backdoors (which explains much of the thefts which occurred within NXT since launch).
Jeff Garzik covered this ages ago
https://twitter.com/jgarzik/status/511928969000943616
NXTers deny / refuse it but that's the power of running an internet cult. Jeff Garzik has nothing personal against NXT. He's a developer for BTC, possibly even the lead developer if Gavin steps down, and he's doing all sorts of ventures to build cryptocurrency as a whole.