There is an auto jail system to detect frame rate hackers and some 3rd party programs.
1st.If your name is well censored to the extent it can be explained to something else,you won't get jailed for it,for example If your name is "F***" and a staff wants to warn you for it,you can explain to him it meant "fart".nothing wrong right?
2nd.The auto-jail system is just doing it's job ,so if times when staffs are not online,they are still able to catch those hackers/cheaters and jail them for their acts.
Yes,the system still isn't perfected YET and jailed/banned some innocent ones.but you have to understand they were lagging too badly until they are seen as a threat to the system.the account won't get instantly resetted unless you do it more than 3 times.