Quora is one of the most heinous sites on the internet because I know there is useful information but will hit a trap as soon as I click. How do they get away

Quora is one of the most heinous sites on the internet because I know there is useful information but will hit a trap as soon as I click. How do they get away with gaming Google search results like this? Why is Google complicit in this shady practice? I don't want walled gardens appearing in search results.