leadegroot - 4:40 am on Apr 16, 2007 (gmt 0) What I haven't seen discussed is the effect of 'Google not trusting your page' anymore. This should lead to a rankings fall.
If I understand correctly - running paid links isn't going to get you dropped from the index, its not a bannable offense.
IIRC Matt has said that the page selling links will not pass link juice (once spotted). So losing the ability to pass value will negate the point of selling links, and theoretically kill the buying & selling of links.
However, in practice, you can't tell if a page has been 'spotted' as selling links - you can't tell if you are still passing juice, so a lot of people are going to hope they are flying under the radar, and continue.
What I haven't seen discussed is the effect of 'Google not trusting your page' anymore. This should lead to a rankings fall.