I was under the impression that you could turn this off; and that the people who actually care whether they're spamming their friends or not would go to the trouble of doing so.
Ah, if that's true I didn't know. I think I sort of assumed that if it could be turned off, pretty much everyone would (and I've only ever seen technologically competent people posting these ticker stories), but I guess not.
> I think I sort of assumed that if it could be turned off, pretty much everyone would
There's no incentive for me, as a college derp, to turn it off - after all, it's not impacting my experience on Facebook. Sure, everyone else's feeds are annoying, but it's like a mix of the prisoner's dilemma and the tragedy of the commons.
Not to mention, you can hide truly annoying feeds - but again, most people don't care.
My solution is no longer visiting Facebook. I keep my account because it's still the least inconvenient way to plan events.
You can choose not to grant Open Graph permissions to Spotify or revoke them at any point. Publish permissions are completely separate from authentication. Publishing can also be disabled from Spotify and there is also a private session mode that you can enable if you want to not publish one or two songs.
Disclaimer: FB engineer who uses Spotify all day every day.