Earlier quoted context omitted.
The guard rails aren’t about blocking professional malware authors. It’s about enabling a significantly larger population that isn’t as talented in acquiring those capabilities. Very different threat model and just because it’s not effective in one area doesn’t mean there isn’t value in making it more difficult for random Joe Schmoe in building an atomic bomb even if a kid before had done so successfully and turned h…
In other words security by obscurity.
For example, if I had a 128bit port number that I randomly rotated my service on, you’d be hard pressed to find my service unless I told you the port - obscurity still but clearly closer to a password. So ipv4 and 16 bit numbers are not because it’s a relatively small space vs the resources needed to map it out quickly (ie equivalent to a weak password and also not suitable for public facing services that need that connection). And obviously relying on this kind of stuff exclusively isn’t wise but it is valuable as an additional barrier an attacker has to overcome and raises the cost of the attack.
I’ll put the anarchist cookbook out there [1] as an example, a book even the original author changed his mind on. Without easy recipes, doing all the things in that book requires you to work to gain that knowledge and that process of working it shapes you into someone who understands and appreciates the consequences of that knowledge and that it’s wise to be careful who you share it with. As is there’s reasonable links between the book and all kinds of mass violence that was more easily perpetrated. Would those people still have been violent? Possibly? Would there have been as much damage? Possibly less.