It's very different today. People have learned to get rich selling misinformation to morons. At least you knew Aunt Marge probably didn't have a complete understanding of whatever she was telling you.
The internet is like having hundreds or more relatives, not just the one aunt giving you the single viewpoint, and some of those relatives can explain their points better or have actual evidence to convince, unlike Marge who just says she wouldn't lie to you. Which ones are right? It's up to you in how you determine that. Maybe some are so trustworthy in past subjects that you can take what they say at face value. Maybe it's a matter of how many agree, or what you hear from them when they argue with each other. None of them may be right...you might have to form your own opinion.