Spotify used to show which of my friends had recently listened to an artist on that artist's page, in both the Windows desktop app and the iPhone app. I found this really useful, if, for example, I was trying to recruit people to go to a concert with. It seems to have disappeared. I've checked bands I know my friends listen to, and even clicked on artists in the right scrollbar, that spotify shows me my friends have just listened to.
Has this feature been eliminated (if so, boo!) or just moved somewhere that I can't find?