Nonsense with Google's AdSense?

OmnipotentEntity asks: "I usually come down hard on the side of Google, as I feel that they have a good philosophy and they follow it. However, a forum I regularly visit had a run in with the bad side of Google's AdSense program, and our AdSense account was terminated because of 'invalid click activity.' Some research by a fellow member of the boards turned up other people facing the same problems we ran into. These problems seem localized to sites hosted in Europe. I'm an American, so I have no clue about the European side of AdSense. Have any of our European webmasters ran into the same problems, or are these simply isolated incidents? Is anyone in America experiencing similar difficulties?"

Comments

At last, a story to fit my username :-)

[adnonsense]

I can't comment on the site in question, but in general AdSense and web forums are not always a good match. Forums often get a fairly small number of highly active viewers, which give rise to one of two phenomena: a) they don't click on the ads much (low clickthru rate), and when they do it sticks out statistically like a sore thumb, leading to possible (mis)interpretation regarding click fraud; or b) the more enthusiastic users take it upon themselves to click regularly on ads to support their forum, which will also raise a few red flags.

Forums can sometimes do well with AdSense if they have a high ratio of "read only" users and take steps such as not showing ads to logged in users.