I wonder why some coins grow so big and others not...does anybody know? 

Eventually all the coins need users who are not miners. I think multipools are the way to go for miners, and the true problem is that many altcoins are not being used for any practical purpose.

Thanks for the nice site but I want to know where the market data comes from...

Wow, this is really helpful. Thanks for writing this! 

It's a true story right? I mean it's not made up for a nice read...