Without access to specialized knowledge, like being an expert in a subject, users will either check the authority/standing of the speaker, the emotional appeal of an argument, or the underlying logic of it.

In my simple way of putting it - creating a website, or creating a post, and then having it disseminated is dirt cheap today. You can get an article on a news website, having it referenced by a youtube channel, have that sent to a twitter feed.

That alone is sufficient to discuss an increase in the volume of content being created - however, that volume also gets disseminated as fast as it is created, which is what accounts for the speed.

This is also without looking into the fact that people tend to use superficial traits to assess whether information is credible online.

"Yet, research shows that people rarely engage in effortful information evaluation tasks, opting instead to base decisions on factors like web site design and navigability. Fogg et al. (2003), ... They argue that because web users do not often spend a long time at any given site, they likely develop quick strategies for assessing credibility."

From: Credibility and trust of information in online environments: The use of cognitive heuristics, (Miriam J.MetzgerAndrew J.Flanagin)

So a good looking website, with content that purports to be endorsed by known authorities, and hits the right cultural blind spots for its audience will get past their filters.

If you’re gathering information faster than your BS filter can process it, then you’ve also exceeded your capacity to process the information your receiving. Assuming BS filter means some extension of comprehension

Yes, I think so too. However people still will consume content as long it gives those dopamine hits. The brain makes you think you are doing something, even if its not really comprehending what its consuming.

Which is getting closer to the problem as I see it - the tech infrastructure has out scaled the default biological tools we are born with.

If you’re consuming information but comprehending it then this is listening vs hearing. This is my original problem with this “faster than BS filter”. If you claim that information is coming too fast for them to comprehend then they are not comprehending it and therefore not getting the information. Which would make this all false.