Buying a proprietary 3D printer with internet connectivity. What could possibly go wrong?
Going by the linked forum post, Anycubic has been aware of it for two months. Any competent FOSS project would have nipped that in the bud on the same day it was discovered. Incredible.
I use Proton, business tier. My only gripe is that addresses can't be deleted without contacting support, or so I've read. I can't find a delete button on any of my addresses, but can find the button to buy more address slots.
Using custom domains and a catch-all pointing to certain labels is my workaround.