Sometime shitwork can be a very good way to find new possibilities. A lot of people do shitwork that's immensely useful, like editors on Wikipedia, moderators on reddit and forums, people who enter all the data into imdb. I don't see how those people could be replaced by algorithms with what we know now.

Sometime shitwork needs to be done because you can't simplify. I'm doubtful that Facebook's auto-group feature would work for me. Maybe me doing shitwork on Google+ is what work for me, because I value my freedom to control my information online.