Also that other sites in the same 'bracket' increase number of visits. Even if HN's visits were increasing, they could still be rising faster. Also when a site

Also that other sites in the same 'bracket' increase number of visits. Even if HN's visits were increasing, they could still be rising faster. Also when a site has been around for long you have to start taking into account the 'population growth'; how many new people gained access to the web this month? How many among those are tech-savy people? Does this proportion increase or decrease over time?