What it boils down to: post civilly and substantively or not at all. Put differently: if you have a substantive point to make, make it thoughtfully; if you don't, please don't comment until you do.
I realize that it's hard to separate a tone that makes the mdoerators unhappy and content that makes the moderators unhappy (I didn't read the comment above as unsubstantive or uncivil at all!) but you gotta play by their rules.
(Or, I guess, burn HN down and start a new one that isn't subservient to capital. I'll join.)
In the meantime, HN is merely one specific kind of community, and it has specific rules which, if people want to participate, they have to follow. Those rules are at https://news.ycombinator.com/newsguidelines.html. They're not hard to follow for anyone who wants to.
Ok, so we burn the system to the ground. Then what? Crown bitJericho king?
It's such a silly mindset. Do what we currently do in US or anarchy. There are over hundred other countries on earth and significant fraction of them is doing way better than USA in most aspects.
Adopting something more akin to European style democracy (which is what I assume you're mostly referring to) is already possible within the US system. That it hasn't been done yet isn't evidence of corruption within that system, but of the culture of the US simply not wanting it.
You need really a lot of disregard of previous system and power to make any significant changes. You'd need either revolution or invasion. Obama inaptitude shows that the system can't be touched from within even by smart person in position of highest legal power.
Anarchic theories are premised on the idea that everyone would act as individuals and treat each other equally, but that's not what happens. People naturally form alliances, tribes, religious groups or out and out criminal gangs.
The prosecutorial assumption of infallibility is just one symptom of a wider malaise. IMHO what America needs to appreciate, as a nation, is that it's nothing special. It's just big and therefore powerful, but it really doesn't have any special moral status or exceptional ethical immunity. You see the ideological belief that it does throughout American History from Manifest Destiny to America First, both the isolationist movement of the 40s and today.
America is a great nation, yes. It's a bastion of democracy, true. But it's a very long way from moral infallibility. There's the perception that e.g. Europe is a corrupt den of elites, born from America's struggle for independence from and conflicts with European Monarchies such as England and Spain, but it's ludicrously out of date. The American allergy against Communism is a symptom of this. At it's root communism and socialism is about individual freedom and a caring society, but communism got infected with totalitarianism early on. Individual communists have often been as shocked and appalled by Soviet excesses as anyone else. George Orwell, who wrote Animal Farm and 1984 as critiques of Stalinism was himself as communist, but the distinction between Communists like Orwell and ones like Trotsky is lost on American ideological anti-communism. You really can have a fair and caring society, and real meaningful individual freedoms. They're not absolute, utterly opposed principles and in fact they need each other. You can't have guarantees of real individual freedom without a society that cares about making that guarantee and takes actual steps to protect it. Even Ayn Rand accepted welfare support when she needed it. You can't have a well functioning system of state care and support for individuals without individual freedoms to hold that system to account and drive change when it's needed.
What makes change in the justice system so hard, as in other areas, is this assumption of ideological purity in the American system, mainly by American Republicans I have to say. As a British lifelong Conservative voter I find this hard to cope with but in the post-Reagan era I find very little common ground between myself and mainstream Republicanism these days. It's a bit bewildering realy.