I think all technology is neutral, and can be used for good or evil. Strangely enough, this is why I have never put a profile picture of myself in Steemit. It isn't because I am famous, but because privacy is getting more and more difficult. Suppose I interviewed for a job, and they did a facial recognition search? Would everything I have ever posted be part of their consideration? Some Steemit users use a portrait or caricature instead. That may be the route I go. Interesting post!