Most pools weren't ready for the launch, so the one pool that was ready got most of the blocks at once. I think within minutes 150 blocks were solved.
You had to sell within minutes of the launch however...
If you sold at 30BTC/ZEC you actually sold way too late hours later.
You could not have sold "within minutes of the launch". There is something called the coinbase maturity duration and the blocks were not found that fast that the coins matured within minutes. The first dust came hours after launch to the exchange. I mined myself from start with the 1.0.0 client and saw in real-time how blocks and difficulty increased. It was much slower than what you described.
Yes it launched, and there were bids and no coins on Poloniex, 120 blocks later it hit the exchanges. I have no idea why you people are arguing and think I am making this up. Some people just got in at the right place and right time and cleared a few BTCs because of it. Good for them.