I don't think that cperciva said that it is difficult to use it. It's not just because DVCS are in fashion that they must be adopted, that's his point.
I'm a happy mercurial user, but that does not make me look down on someone who uses CVS/SVN/Perforce and is okay with it.
I'm a happy mercurial user, but that does not make me look down on someone who uses CVS/SVN/Perforce and is okay with it.