Scrob...what?
Verb scrobble (third-person singular simple present scrobbles, present participle scrobbling, simple past and past participle scrobbled) (Internet slang) To publish one's media consumption habits to the Internet via software, in order to track when and how often certain items are played.
Noun scrobble (plural scrobbles) A datum or the aggregate data collected by this means.
I never never cared about my own or other people's music listening history. And I never talked to someone who does. So I never needed a word for the thing, I guess.