I think this will be dumped hard on the Dec 28th like the famous phrase "buy rumors, sell on news". 
You'd be retard if you do that. Everybody knows the potential that Iconomi has, the current trend is up.
I think he could be right. Moneywise, there won't be much to show 28 December or the days/weeks after. There will be much to show in a few months though... but definitely not right at or after the launch.
I have written something about this - explaining why it happens most of the time.
Buy the Rumor, Sell the News Why It is Always Relevant to All Markets
What about all the times when it was buy the rumor, then buy more on the news?
Darkcoin rise, Ethereum rise, Monero rise. These were all pumped up on the rumor, further pumped on the news, then ended up coming down a bit and settling much higher than they were originally before the rumor.
How much is Darkcoin, Ethereum and Monero now compared to their hype days? Bubbles are the by-product. You don't have to be literal about it. You'll know when the hype is over. For ICN, it could be a correction to a higher low than 15.9k sats, maybe 20k again, who knows? But definitely when a local hype is over, price goes down.