Totally with you. I’m working on my own self hosted music server and I’ve built in a way to publish listens as nostr events. I never liked how scrobbles were all or nothing - it’s nicer when the user has control. 

If you look carefully the event type is 2002 in honor of the year last.fm was founded. https://image.nostr.build/f9e0a28dd96073d6417094f386451d28b87e25d53570bc4989dd7696bdcf0770.jpg