I think there is this idea that Linux can't or won't achieve what BSD has but after being a sysadmin for years in Linux systems running behind pfSense I can say that this is all a rose colored vision of a time gone by from people who had the misfortune to learn Unix before linux. They are both full of silly paradigms and pitfalls, inconsistency and sometimes even order but in equal parts if you actually understand them and how they are built. The only difference I see at 20 years at it is one of them has hardware, software, and documentation for any contingency even if it's lackluster and the other is freeBSD. I admire the nostalgia but its gotten old...I would go so far as to say for pure practicality that I can do anything on Linux I can do on BSD but Im not nieve enough to claim the opposite.