People were doing a lot more legwork back then than just passively consuming news. Cross-referencing was definitely part of it, but there's more to the actual toolkit folks developed. You had the obvious stuff like checking multiple news sources and seeing if the story held up across different outlets, but people also dug into original sources directly - if a claim mentioned a study, you'd actually try to find that study. Sites like PubMed for medical stuff, government databases, and institutional archives became pretty common browsing destinations for anyone serious about verifying something. There was also a real culture of checking author credentials and publication dates, especially when something seemed shocking or too convenient.
Beyond that, community-based verification became huge. Reddit threads, specialized forums, and comment sections on news sites often had experts or people with relevant knowledge pointing out factual errors pretty quickly. It wasn't always reliable, but the crowd-sourcing aspect meant misinformation sometimes got debunked in real time by people who actually knew what they were talking about. Social media also made it easier to trace claims back to their origin - following hashtags or searching for who first posted something could show you whether it was recycled or genuinely new. People also got better at recognizing common manipulation tactics: sensational headlines, missing dates, photos from completely different events being reused, that kind of thing. It was slower and more manual than what AI tools offer now, but it actually forced people to engage critically with information rather than just trusting a tool's verdict.