This twisted argument seems to be claiming that 4chan is more trustworthy because it’s less trustworthy. But you’re demonstrating a double standard. If you can excuse and overlook the unending ocean of fake news and propaganda and bullshit on 4chan, then it’s only fair and consistent to do the same for mainstream news, where it’s also true that not everything is propaganda. You’re whole complaint boils down to you writhing against the “pretense”, but why does that matter, exactly? You either care about the truth or not, so the reputation shouldn’t be a factor for you, especially if you seek information from disreputable sources.