I agree totally, just was unaware of a better source of traffic data for the two sites. (not every site publicly shares its data as willingly as pg does)
I'll probably be using Google trends in the future, thanks for the heads up.
After looking at the chart (assuming as Swannie does, that Google trends is a significantly accurate source), it seems pretty apparent that HN doesn't have enough traffic to cannibalize significant traffic from them.
