Just go back to basic. Only thing allowed is password protected rooms, which staff can force enter.
Also handy tip:
In lobby inspect a player's bot by clicking their name. Then check the level. Find what room there in and inspect to see if it has any restrictions, if it's only 1 player and he's playing alone then it's good to assume he's hacking IF the following. He is a low level, manages to complete the room in > 30seconds and levels dractistically 4/5 levels. I used to be able to catch people by time with ease. Proving it was hard, but then you just montior it several times to make sure. Sometimes it goes even faster, considering the only map that gives great exp to level greatly is 258 we know >200lvl can't solo in under a min so if he finishes the room in under a minute and levels a fair shout with the following applied. He's hacking.
Complicated, but it does work. (Don't remove this post this time...)