lucy24 - 12:25 am on Jul 21, 2013 (gmt 0)
if you remove the page that is being linked to (such as a spammy forum thread) and make sure that it returns a 404/410 HTTP response code, we'll ignore the links to those pages
As a human, you'd think that if all of site A's links to site B lead to 404s*, this has to make site A look bad. But I don't suppose they'll come out and say so.
* In this case, 404 would work much better than 410. A link to a 410 might just be slightly out of date. A link to a 404 is "Huh? I have no idea what you're talking about."