I am Danny, destroyer of disks
We got a bit paranoid about disposing of data in the peace movement, pre-Snowden. Most went for hammers of various sizes to bang their old disks / browsing history. I built a furnace to smelt that aluminium. Fireclay and vermiculite cover stoked with charcoal easily gets to 800c.
I started melting friends hard drives, giving them the remains as a shaped trinket, and then I thought to offer it as a service to the general public. It turns out the general public are all just paedophiles or drug barons, so I broke my furnace.
I have several disks of mine left to destroy but my last fireclay ironically was destroyed in a fire.