Back then the price was crazy high on Poloniex, basically one ZEC was worth more than one BTC and if you were on an actual pool that paid you could of been one of the first few deposits and made crazy gains for almost no work.
The issue with this is that we don't see these gains everyday. It was basically pure luck and it won't help you out in the future.
Haha I did same. I had 30 x 6 card machines at the time and hit zec as soon as it went live and sold it as soon as it hit my account. Man those were the days..., People were FOMO hard on Zec - Supply and Demand baby, it's a beautiful thing.
It was pure luck. There were many pools but only 2 of them actually paid out a few hours after the blocks matured. I think suprnova was one of them.
However you had to use the regular address, I think it started with a "t" instead of the privacy address "z" to get paid. So even if you were on the right pool, the payouts to "z" address were delayed by a few DAYS since the ZEC launch had issues processing those transactions with those addresses and pools stopped sending out any payouts.
The ZEC launch was madness. I remember all those "ZEC Cloud mining" services that popped up and most of them became very bad investments to whomever bought a contract.
Crazy to believe it was almost 2 years ago... time sure flies.