That's a reasonable thing for you to do (especially if you have some other signal source you use for malware protection), but HN readers are rarely representative of average users.

This feature is there for my mother-in-law, who never saw a popup ad she didn't like. You might think I'm kidding; I am not. I periodically had to go into her Android device and dump twenty apps she had manually installed from the Play Store because they were in a ring of promoting each other.