>> Some people argue that Google possibly can't win the fight vs spam sites, but obviously it works perfectly fine manually blacklisting them.

> Yeah, but then they're editorializing.

> And not in a generic “this kind of content is bad for our users” but very specifically “site x.com is bad for our users.”

Except that shouldn't be a problem because I'm pretty sure Google already blacklists domains.

Surely, they do. But they reserve that for stuff that's really way beyond the line. For everything that might be legitimate they leave it to the ranking algorithm to sort out and it's a game of cat and mouse.