Problem is, nobody is going to just download a support for a tiny mod like this. you'd have to make a whole big system (like RTB) that people are willing to download to collaborate several server support mods for clients.
Even then it'd require to send the server a connection, opening up another port.
It would be too much work for such a tiny feature for one user.
It could even be abused by spamming connections, and possibly locking up the client.
If you must have a list of servers you have admin at, write a list yourself, or join servers you think you have it at.