Yahoo and Backlinks

I have been finding YAhoo is really eating up backlinks "themed by anchor only" as a ranking source. Recently I added a few thousand backlinks with the KW "SEO" in it and what do you know, Im ranking #1 for SEO and didnt do any real onpage modification at all. With webrank coming out, I think the link mongers are going to destroy all that is left of the copywriting SEO dinosaurs