alright so this is an idea that came to mind when practicing for clan league

basically, while making a server private ensures that only people who are welcome can chat and play.
however, it still allows for spectators which eliminates the possibility of, as an example, practicing for clan league.
lowering the maxclients and adding VIP spots can be a hassle, along with raising the maxclients whenever your friend wants to join.


this picture shows how i'm thinking it would work

to explain a bit more detailed, a normal player can't see any hint of the hidden servers existing.
although they can still join it by writing "/jo *roomname*"
however, to prevent hidden servers doing nasty stuff against the rules, the gamemasters and
what not are still available to see these servers but with some kind of way showing if they are hidden.

EDIT:

did not think of the /sa *playername* option. in my opinion this command could simply say "this player is in a hidden server" or something
but yeah if a gm and what not does it, it shows what it does normally