So what's up with you. 7 hours, 745khah/s --> 3843 ECC?
Blocks are being found all the time
Time Since Last Block 15 minutes 18 seconds
The answers are on their website. You only need to look at one page.
Note how high the green line is on their
block statistics page. People who found shares before the first block was found were still getting a cut on blocks that were found later. That's because it supposedly took 22 times the average number of shares to find that block. Until the green line dips all the way down to where the other lines are, you will be earning ECC on a very delayed basis. That's just how variable PPLNS works. (Don't ask if it really took that long to find the first block. That seems a bit suspicious to me, but it's possible. You might want to check and see who earned the shares for that block.)
On top of that, according to the same page, they had a run of bad luck right when you started mining. Yes, they found a block recently, but they went several hours without finding a block before that. Earlier, they found several blocks quickly, but that was right before you started mining. That looks like normal variability to me.
Of course, yet another problem is the cherry-picking that I've already mentioned a few dozen times. As the same page shows, of all the blocks that pool has managed to find, only one of them was over 200,000 ECC and it was just barely over. So the pool is getting much less ECC per block than it would be getting if ECC could be mined fairly.
Between those three things, it's no wonder that you weren't credited with many ECC. The good news is that you would probably still earn some ECC for the first few blocks that will be found after you quit, if you quit now. That effect will be less as the green line drops, though. And of course it won't happen at all once the PoW phase ends.
