They’re asking election administrators to use their data to purge voter registrations, which means names could be removed in a less public process than a formal voter challenge. The strategy could mean electors won’t be summoned in advance to defend their voting rights and the identities of those seeking to purge voters might not be routinely public.
Without anyone being able to challenge them. Meaning they can claim whoever they want died or moved and those people can get struck off the voter rolls.
And if you don’t think Georgia has a long history of preventing certain people from voting, I suggest you look at their history of elections, especially pre-1964.
Groups like this are often using these group sourced lists of people that aren’t Republican, and are terribly inaccurate and full of flaws. These are the same people that were “finding” all the voter fraud they couldn’t prove, or show evidence of once those accusations had to be backed up by something in a courtroom.