Have hashtags finally outlived their usefulness?

By Stephen Downes - Stephen's Web. Have hashtags finally outlived their usefulness?
Terry Dawes, CanTech Letter, 2016/09/02

In 2005 I gave a talk at Northern Voice "deflating a few pet concepts of the blogerati, such as the value of the long tail and the utility of tagging." people actually shouted at me when I criticized the future of hashtags (well, it was Marc Canter shouting, but he counts as people). More...