aakk9999 - 3:09 am on Dec 13, 2013 (gmt 0)
@aakk9999 so are you saying neg seo exists or doesn't? Reading what you said it could go either way.
We know negative SEO is possible. Although some sites are more immune to attempts than others.
My reply further above was to aristotle. He was talking about (hypothetically) buying one link for $100 and how would Google know if he paid for it or not.
Unless the site has a history of link buying and the other site history of link selling, then this one link would most likely not be flagged as "unnatural" even though it was bought. But repeat this X times and you develop a pattern that raises a red flag - and you get caught.
What I wanted to say is that in the same way as Google sees natural links as bought, the opposite is also true - there are links webmasters bought, but Google treats them as natural.
There is no such option in Webmaster Tools.