Having such short timeframe for blocks creates a lot of inconsistencies, and keeps difficulty lower than it should be.. For a block found in 15 seconds, it may not even get broadcast to the whole network before the next 15 seconds are up. I'm not sure but it could be why there was a major alt-pool which ran on a dead blockchain for 300 blocks in a row on WDC. I think ultimately the fact that they chose such a short block time signifies they had no idea what they were doing in making their alt, and it will inevitably be the end for the coin in the long run. But, enjoy it today, while its reigning #1 on coinchoose.com.
If it has a marketplace and vendor that accept it, it won't matter how frustrated on overwhelming number of miners are.
If infrastructure is built, demand will rise.
For all we know, the Dev could have intended on discouraging too many miners from mining then dumping the WDC network.
a coin needs to withstand the pump and dump long enough to establish a commerce infrastructure. only then will it have staying power. these coins are like infants learning now to walk. they will fall down over and over again until they figure it out.
I like the analogy but sadly unlike infants, a lot of these alt coins will never figure it out.
-tb-