Facebook didn't use hg until 2012 or later. I was talking and only know about the state of hg in 2010/2011 and at that point, git was widespread, stable and wid

Facebook didn't use hg until 2012 or later. I was talking and only know about the state of hg in 2010/2011 and at that point, git was widespread, stable and widely more useful than hg for anything besides simpler/smaller projects, again IMO.