Re: Did anyone explain grandfathering in PROVEN tagging abuse ?
I didn't know theymos become grandfather at age of 291 
Just refers to allowing something that has been in place pre-change (Law, rule, qualification), to remain in effect despite being sub-par by new (build/hiring) requirements.For OP, you are mistaken
How are the existing ratings converted into the new flags?
They're not. I decided that too many negative ratings aren't flag-worthy, and there's no way to automatically determine it. If you believe that a past negative rating is flag-worthy, you'll need to create a flag.
If you are just complaining about ratings in general having been grandfatheres then there is nothing more to discuss. A tweaked system didn't automatically negate anyone's feedback. It actually diminished the "power" of the previous DT grouping. So now if someone constantly remains neg'd it's because a larger percentage of the population here agrees they exhibit, let's say "Shitty" behavior.