This is funny. There are many scams, but so far there is nothing to suggest KNC is a scam, infact, quite to the contrary.
...
Then you didn't read the complete bullshit in their very first post:
...
We will in the upcoming weeks opening our order book to allow the purchase of our first set of ASIC miners. They are in the early stages of development now and will be ready in the summer of 2013 (yes in just a few months)
...
They never take a single cents from us ... not like butterfly who took the money for a year and no delivery.. if they is delivery at all?