If you spend a significant amount of time in front of a screen you should try to reduce blue light at all times just to reduce eye strain. flux is great but just a simple orange background / window theme will go a long way. This isn't a replacement for putting down your device an hour before you go to bed. Even if the light is orange / yellow you're still shining it in your eyes.
Anyone taking bets on how long it takes for this guy to get into a dispute with a neighbor and he starts exerting influence through his private police force.
This is what makes security hard: To attack successfully you only have to find one significant mistake, to defend successfully you can't make any mistakes.
Agree. There have been several vulns in the fringes of QEMU device emulation code before but typically in lesser used devices (floppy etc). OTOH it's very common to use CDROM emulation to install systems and I'm sure there are plenty of admins who leave the ISO exposed to the guest "just in case".