On ES 2.1's new Audio feature, it would be nice if there was a Plays or Listens counter to represent the number of times the play button was pressed. Currently there is a Views counter that only increments when the actual audio file is opened in a new page. But many people will press the play button in the stream and never open the audio page itself.
As an example, on Soundcloud, the counter increases with each play. And maybe there should be a way to prevent someone from clicking the Play button over and over to hype their own Listens. Maybe limit counter increments to X number of increments per hour or day from same IP. Or force a 10 minute pause before same user/visitor can increment the counter again. For logged in users, playing your own file should not increment the counter at all.