Thankfully, the investigation did not find that those attitudes were motivated by a desire to increase revenue-raising through parking fines.
So what was the motivation for those attitudes?
Now the council has not changed its rules to allow parking inspectors discretion to not issue fines based on Zero/O confusion, but has made it a valid reason for an appeal against a fine.
So as long as people don't complain, money is flowing even if the council management knows that the mistakes are innocent. And increase revenue-raising is not the reason of that decision, of course!