Alien wrote:Lurk/play in several public non-password protected servers until somebody notices you and invites into the password protected one (if you wish to play here).
http://www.ut99.org/links/
I still fail to understand where is the difference if you would be able to see supposedly private server or not. So annoying to click and see please enter the password box? So uncheck show password protected servers (or make that checkbox uncheched as default). Admin doesn't want to see his server in the master list? sv_keep_server_private 1.
If password protected servers are not shown, people don't let them "replace" public servers.
If they are shown by default, people will eventually stop making public servers at all.
The only option might be turning that option off by default. Still, the possibility of password protecting servers turns the game into a very closed game very soon where "new" players can't have fun any more.
Apart from that, I doubt such server filtering is even possible.