For the same reason that people run random .exe files that you find on the internet. The problems are rare enough that people can easily think them away. And th

For the same reason that people run random .exe files that you find on the internet. The problems are rare enough that people can easily think them away. And the people giving the advice think "well, this is a safe resource, so there aren't problems asking people to do this", because people aren't very good at contemplating their own failure. I'm not saying that's a justification. I'm just saying why people do it.