Before these hacks, you would rarely see any more than 1, maybe very rarely two in the quadruple digits (sometimes a friend may get asked on Team Speak to get 0p or something, but rarely), basically if two get over 1000 it’s suspicious, if 3 get it the fix is in.
Although usually no one is over 1000 when one guy is at 0. One could claim suspicion when 67% is covered in the short time. Either someone is asked not to fight, or there is a hacking.