YSK long noise videos cant effectively be compressed and as such take quite a lot of storage space and bandwidth. So if you want to keep the hosting costs of social media platforms low, for example when going public, you definetly wouldnt want disenfranchised users to upload them to your platform. This is the kind of noise you would want to avoid: https://stackoverflow.com/questions/15792105/simulating-tv-noise#15795112
A fellow cs mayor I see, no I apreciate the thoroughness. You are right I was trying to put it in laymans terms and might have been a little to cursory.
I gotta disagree on the pseudo randomness tho. At least in linux /dev/random generates its entropy pool by using device drivers. So there is no simple algorithm behind it where you can copy a seed. So you would have to to copy the system state and all external events happening (eg. the ethernet network traffic) to generate the same output.