There is also a strong likelihood that psychiatric findings get outdated quickly given the rapid evolution of culture, tech, communication and society in general, just 30 years ago internet was just for a few nerds and tech enthusiasts, just 3 years ago you couldn't make the computer realistically pretend to be your lover over chat messages, the landscape in which psychology has to exist that has little to do with it is so ever changing that maybe it was always bit silly to expect it to be a hard science.