Funny thing about ancap libertarianism is that they've correctly identified that power can lead to tyranny, but they're completely oblivious to the power that corporatism (the conclusion of lassez-faire capitalism) results in.
Unfortunately it's usually self-interested psychopaths who seek out and obtain those positions, especially since you need to be a bit psychotic to do what's required to get there.
The state is kinda bad and it's not only Right-Libertarians who say that. Even so, leaking documents is not always bad. Like, the Abu Ghraib leak was objectively good.
Abu Graib wasn't leaked. Amnesty International talked to prisoners that were released. Then the Red Cross used their oversight powers to get in and make an official report. Then a soldier reported the crimes to the Army's version of the FBI, (CID). The Army then did an investigation and started arresting people.
Joe Darby came forward with the photographs, effectively leaking them. Rumsfeld later leaked Joe Darby's name and identity, leading to him receiving death threats.
Taxes used for public good and infrastructure are what taxes are supposed to be for. And they should be raised and collected proportionally to your wealth.
Neither of those statements describe how the US handles taxes.