Does fudgeing nobody on this damn forums know what the fudgeing use of a DDNS service like NO-IP is. It's not for fudgeing hiding your IP because it can easily be resolved by any web service. No, it's use is that if you don't have a static IP you can change the IP that your no-ip url redirects to online without having to re-upload your client.
Furthermore, you're stupid. NO-IP is a DDNS service and doesn't slow your connection down whatsoever, your application (client) resolves the IP from their DNS server and connects to that IP, so directly to your server. yes it might slow down your first DNS resolve but whatever that's not even relevant.
Trying to hide your IP while hosting a server is absolutely stupid, why would you hide your street address to the mailman or amazon!