That Vine's userbase consisted largely of younger people probably should have given Twitter pause, and in retrospect might have made them rethink that $30M valu

That Vine's userbase consisted largely of younger people probably should have given Twitter pause, and in retrospect might have made them rethink that $30M valuation. Those are the same users who are most likely to drop your service overnight when it becomes uncool, for reasons that may never be clear or make sense. (See also: Myspace.)