You are the one who mentioned security, not the other user. My point was I don’t think they were referring to security as Plan9s most famous features very much have made their way into every major OS out there.
>>edgyqu+(OP)
I was going by the top of the thread and choosing to assume the rest wasn't just non sequitor. I don't actually see all resources in GNU/Linux (for instance) available for me to mount remotely into my namespace via a uniform protocol.