My interpretation of that is that I’m required to assume good faith on behalf of other commenters. So, if someone makes the same argument as the government, I’m supposed to assume good faith there, but nothing requires me to assume good faith on behalf of the government. So I can say that this is obviously a shakedown without breaking the rules.
"Assume good faith" does not mean "extend an unlimited amount of good faith to demonstrably bad-faith actors".