OP author here: the rivalries there are directional, "if you liked X, you probably disliked Y", but not vice versa. (One thing I find interesting is that most rivalries really are directional: you see git users disliking svn, but not svn users disliking git).
Perhaps there's a way I could make that clearer in the post!
Perhaps there's a way I could make that clearer in the post!