You shouldn't have had any trust to begin with; I don't know why we are so quick to hold up humans as bastions of truth and integrity.
This is stereotypical Gell-Mann amnesia - you have to validate information, for yourself, within your own model of the world. You need the tools to be able to verify information that's important to you, whether it's research or knowing which experts or sources are likely to be trustworthy.
With AI video and audio on the horizon, you're left with having to determine for yourself whether to trust any given piece of media, and the only thing you'll know for sure is your own experience of events in the real world.
That doesn't mean you need to discard all information online as untrustworthy. It just means we're going to need better tools and webs of trust based on repeated good-faith interactions.
It's likely I can trust that information posted by individuals on HN will be of a higher quality than the comments section in YouTube or some random newspaper site. I don't need more than a superficial confirmation that information provided here is true - but if it's important, then I will want corroboration from many sources, with validation by an expert extant human.
There's no downside in trusting the information you're provided by AI just as much as any piece of information provided by a human, if you're reasonable about it. Right now is as bad as they'll ever be, and all sorts of development is going in to making them more reliable, factual, and verifiable, with appropriately sourced validation.
Based on my own knowledge of ginseng and a superficial verification of what that site says, it's more or less as correct as any copy produced by a human copy writer would be. It tracks with wikipedia and numerous other sources.
All that said, however, I think the killer app for AI will be e-butlers that interface with content for us, extracting meaningful information, identifying biases, ulterior motives, political and commercial influences, providing background research, and local indexing so that we can offload much of the uncertainty and work required to sift the content we want from the SEO boilerplate garbage pit that is the internet.