spotify has a whole economy of bots signing up, uploading fake songs listened by other bots and earning lot of money in the process.

Sure, I understand gaming the system. I have tracks on SoundCloud, and the same economy exists there too. I just do it for fun tho, I'm not interested in any monetary or commercial pursuits. It seems to me tho, that a relatively small number of accounts doing massive scraping would raise an eyebrow or two, no? Roughly, the average a 320 kbps audio track would be around 8 MB +/-, which gives you 10,616,832+/- tracks. Damn!