It's a misleading metric. At home I block all ad server domains with a host file on my router. This triggers the Adblock wall. When I am at work or on the road

It's a misleading metric. At home I block all ad server domains with a host file on my router. This triggers the Adblock wall. When I am at work or on the road I get a message "Thanks for turning off your adblock." However, at least Forbes is only deluding themselves and not their clients. There are eyebrow raising demographic issues with internet ads.