I get your point wasn't this specific example, it's perhaps not a very good example of being dangerous: Getting that much caffeine into your bloodstream takes quite a commitment, and someone who knows the term LD50 is perhaps not very likely to think it indicates what is safe to consume. It's also not something you're likely to do accidentally because you've looked it up online and decided to test it.
In the most concentrated form in typical commercial caffeine tablets, it's half to one fistful. In high-caffeine pre-workout supplements, it's still a quantity that you'd find almost impossible to get down and keep down... E.g. a large tumbler full of powder of mine with just enough water to make it a thick slurry you'd likely vomit up long before much would make it into your bloodstream...
I'm not saying it's impossible to overdose on caffeinated drinks, because some do, and you can run into health problems before that, but I don't think that error is likely to be very high on the list of dangerous advice.
In the most concentrated form in typical commercial caffeine tablets, it's half to one fistful. In high-caffeine pre-workout supplements, it's still a quantity that you'd find almost impossible to get down and keep down... E.g. a large tumbler full of powder of mine with just enough water to make it a thick slurry you'd likely vomit up long before much would make it into your bloodstream...
I'm not saying it's impossible to overdose on caffeinated drinks, because some do, and you can run into health problems before that, but I don't think that error is likely to be very high on the list of dangerous advice.