People sold at 600 satoshis for the same reason they are selling today. FEAR, UNCERTAINTY, and DOUBT
Look at what happened to those who sold at 600 satoshis when BTC was $230. Those people are crying today. The people who are selling today will be crying tomorrow. Welcome to the world of investing.
Whenever the price goes down you see these trolls appearing out of nowhere to try to destroy the reputation of AMP.
Whenever the price goes up they say that it's because it's pumped by scammers.
These trolls are relentless, they invent all kinds of crazy reasons just to destroy the reputation of AMP, but they never acknowledge that AMP is stable simply because it's a great project, and they are just crazy trolls for not seeing this.
Ethereum > 400 %, ETC > 500 %, Dash > 700 %, XRP > 300 %. Sure, man. You sound legit

Ok I was wrong there, but how do you know if AMP won't go up 700% in the next 6 months. It basically got delayed due to the December fiasco with the CTO leaving.
If that didn't happened, then AMP would be already next to ETH basically. It has a lot of hidden potential that people can't appreciate.