Do what, exactly? Prevent you from getting linked to racist or sexist threads? Because almost certainly the only way you see racist or sexist content on reddit.

Do what, exactly? Prevent you from getting linked to racist or sexist threads? Because almost certainly the only way you see racist or sexist content on reddit. You will very rarely see it on the logged out front page (the big reddit blowup is obviously a major exception), and probably rarely in any threads on default subs unless you deliberately browse the heavily downvoted comments.