At its core antitrust cases are about monopolies and how companies use anti-competitive conduct to maintain their monopoly.
Github isn't the only source control software in the market. Unless they're doing something obvious and nefarious, its doubtful the justice department will step in when you can simply choose one of many others like Bitbucket, Sourcetree, Gitlab, SVN, CVS, Fossil, DARCS, or Bazaar.
There's just too much competition in the market right now for the govt to do anything.
Github isn't the only source control software in the market. Unless they're doing something obvious and nefarious, its doubtful the justice department will step in when you can simply choose one of many others like Bitbucket, Sourcetree, Gitlab, SVN, CVS, Fossil, DARCS, or Bazaar.
There's just too much competition in the market right now for the govt to do anything.