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The issue with cryptonote coins is that the server must run a node anonymously. Bitcoin based altcoins can be run over tor, monero etc cannot. This increases the risk of demasking.

Currently CryptoCurrency Exchanges are under increasing regulatory pressure. This Exchange will provide trading services for those traders who don't with to be lawskeyd. Also we are are interested at some point in the future to provide a desktop client similar to MetaTrader that will have i2pd embedded so anyone can trade any coin easily and anonymously without ever having to put any effort into technical computer configurations.

Run your node inside whonix or another torified VM

https://www.reddit.com/r/Monero/comments/31ciuf/questions_running_monero_over_whonix/

If you don't have the technical expertise to set this up, I'd question whether you should be running a "dark" exchange at all..