Because (I think), if it was detected, then all users should get banned immediately, even after registering new account. Also, there are users who are still playing with the cheat since its first release and not banned.
So it is not unsafe because there are banned users, but it is undetected because users are not getting simultaneous and sudden bans.
Best(Feedback)
Please, Update The Hack
& Make Items Type From: Names To( Icons That appear The Items ) ,Without Names Of Items To Appears In Front of Us !
& 2nd Thing : please , (Mark On The Items We Want) without Typing All Or Every Item At List ! & 3rd Thing : Add Warning Grenade
& by This 3 Feedbacks.. The Hack Well Be Better.. Than Ever