There should be some warning if some "fact" is only supported by one or very few obscure sources.

The strength of the sources should be clearly indicated in the answers to help users gauge how trustworthy the info is.

But you can still just generate any arbitrary amount of information to support the ‘fact’

LLMs are very good at this clearly

We've been down this road when backlinks ran the game. It eventually ends with parasitic hosting. Find a domain with authority and spam whatever mis information or spam you'd like AI to run there. Or buy a domain that has trust already. Or for the darker hats just literally hack the site and use cloaking to send fake info to the AI bot. It's probably already being done.

Everything old is new again when you start a new market. If you think that AI is bad imagine what old tricks are new with polymarkets

We need a 2026 version of PageRank, some fully game-theory-maxed transitive trust model. And we need it a few years ago already.

It does sometimes flag up sources, and when it does, the sources are often laughable (Reddit threads, or the vendor's own website [in response to an evaluation rather than factual question], or an AI generated SEO blog for some low profile company in a barely even adjacent industry). Sad considering what Google's origins were...

There is no one scalar tell it all when it comes to trust.