No, you can get banned if someone reports you. If you have too many points too quickly in Full Marks or House Pride, someone can report you and JC will look into your account and find out you cheated ;) This method is much more often than that anti-cheat failed. Also if you hoard too much energy (f.e. 600+) your account will get flagged by JC system. JC is sometimes randomly checking flagged accounts. If someone who play this legally and yet is still flagged because they saved too much energy, JC can look in to them but they will find out their account is okay, on the contrary they can easily check another account that has also a lot of energy saved but will find out this account is modded.