Hacker News Reader

!se or !r respectively on DDG. (Also !reddit and !oldreddit)

Bang search: !bang <site description>

I definitely don't want to use the site's search box. I just want a normal Google-style search... but ranking "discussion" sites highly.

AFAIR there may be browser extensions which allow site blocking from SERPs. None that permit reranking based on site of origin though.

The bang hacks are convenient though.