When a server is first added it will be tested, I just need to work out some bugs with the testing service which should basically implement RakNet.
I like the concept, but I fail to see how Meteor makes this better than any other implementation. I am interested in what it would be like with thousands of servers and users though. I was pretty involved in nagging the developer of mcserverlist.net in it's earlier days because of load issues and inefficiencies. The result was that only the front-end could use the fancy implementations and such, whereas the back-end was rewritten around 10 times in different languages. Starting with Rails and ending with Java (which did the job the best).
I just thought that Metor would be a fun thing to try. The main advantage is the instant updates. For example, if you change your server title in the config file it will be immediately pushed to the server and then the server will push the database down to every browser currently open. Also, working with Metor makes it really easy to extend functionality without that much effort.
I might add the ability to set hostnames. I will need to dig up the project from wherever I stuck it.