Here's a geographic analysis of all 5,000+ rejected absentee ballots in Georgia. washingtonpost.com/business/2018/… 
You see that blank swath around Atlanta, indicating no rejections? That's Fulton County. They received close to the same number of absentee ballots (17,000) as nearby Gwinnett County (20,000). Gwinnett rejected over 1,500 ballots. Fulton rejected 1. washingtonpost.com/business/2018/…
Why the discrepancy? It's simple: county elections officials have tremendous leeway in deciding which ballots to toss. Gwinnett rejected ballots for birth date errors and address errors, and was aggressive when it came to signature mismatches. Fulton County was not.
Here are rejections broken down by reason. Note how much Gwinnett stands out for problems with birth dates. Part of the reason: in Gwinnett the ballots put the birth date line next to the signature line. Hundred of voters thought they were supposed to enter the current date.
Note that none of this is likely to make much difference to the Governor's race, where Abrams is below the recount threshold by 18,000 votes. But could be highly consequential for #GA07, where the current margin is just a few hundred votes. ballotpedia.org/Georgia%27s_7t…
Here's a peek at the data file. There were 161 of these -- ballots rejected for putting the current year as the year of birth. Every single one of them was from Gwinnett County. washingtonpost.com/business/2018/…
Via the @ajc, here's a photo of a Gwinnett absentee ballot. Note that voters are asked to put their year of birth directly above the signature line.
