GitHub waits fourteen days for the complainant to respond to your counter-notice before putting your repo back up, from experience :/

In addition, they won't even give you any info they hold on the complainant other than that explicitly included in the notice itself, claiming 'data protection' (some troll hit a bunch of my repositories with fraudulent takedowns in two waves, meaning it took about a month before they were all restored)

That's a nice way to get legal problems with one of the biggest companies in the world.