Spotify is writing massive amounts of junk data to storage drives
arstechnica.co.uk
arstechnica.co.uk
It's somewhat ironic that since SSDs are completely silent and so much faster at these sorts of writes, it's far easier for huge amounts of unneeded accesses to go unnoticed. The lack of disk activity lights on a lot of newer computers doesn't help matters either.
With spinning-platter drives and HDD lights, constant accesses would be very noticeable, both audibly and visually, and perhaps even more people would press for a fix sooner.