Busybox was quickly replaced by BSD-licensed Toybox everywhere for that exact reason.
Copyleft licenses (like the Gnu General Public License) mandate that all derivative works remain free.
This is false. It's perfectly legal to take GPL-licensed work, modify it, and sell it. As long as the work itself does not reach the general public, you don't need to release it's source code to the public (e.g. your work for the military, you take money for your work, and provide source code to them, but not release it publicly).
The first one is a fancy CPU warmer. The second one will play loud noise through your headphones, and setsid will make sure you can't stop it with Ctrl-C.
There was a thread about console commands seen in movies or TV, when the actors need to do some 'hacking' on camera. And the most common one was just installing updates to your Linux distribution of choice.
Sure, you could get a piece of land in Siberian tundra at any time, I would not call that housing.
Moving to a city was way more complicated than in capitalist US. You could not simply buy an apartment. You had to be allocated an apartment by the government. And you needed connections for that. Or bribes. Ideally both. If you think your local rabid Republicans do not care for little wage slave men, you never experienced USSR, it was like that but 100x worse.