They can be used only for one purpose and that's why they are good.
But never gonna be so successful as bitcoin or even LTC..
First announcement of Dark Coin made me to think - this will kill bitcoin in few weeks..
and nothing happened.
First, you can't have a fungible currency without privacy. It's not by accident that CT was developed to help Bitcoin's fungibility issue.
Second, darkcoin is a piss poor design for an anonymous coin. Everyone who has a clue knows it and that's why you don't see any early adopters of Bitcoin using it. So if that's your metric, I would upgrade your understanding of anonymity before making the statement as it's the equivalent of saying, "Cell phones will never take off because they are heavy and cost too much."
Your a full of shit on a persistent colossal scale.
You can bicker about which shitty ass Anon coin is better but they are all pointless stupid gimmick garbage.And all fo them exist to part users from Bitcoin so they can be cashed out to FIAT..
As always your eloquent, thoughtful, level-headed, polite and fact based criticism shows how endeared you are to using this forum as a method to separate legitimate technology from pump and dump schemes.