There is no excuse for having trash in a system that is 15 years old.
Does not pass the smell test.
Well there is an excuse. It would be a violation of the law to remove them. Inactive voters CANNOT vote without re-registering. If the legislature doesn't like that they can certainly change it.
And there is the issue of 3rd party access by the ComDems during and after the election.
Anyone can access the voter database. That's a feature, not a security problem. I'm guessing the Wisconsin GOP was too flaming stupid to utilize it and mobilize voters.