I have always used cold since Cheer marketed the "TempaCheer" product which was designed to dissolve in cold water.  Now, "always" is a vague term, but I do know that the only time I used warm water consistently was for cotton diapers.  That was clearly 30+ years.  
It strikes me as odd the phrase in the NYT article that said: 
       "Newly formulated laundry detergents can wash most clothes perfectly well in cold water..." 
Love,
MoM