I agree 2008 was the last good year and the downhill trend has accelerated substantially since then, especially this year.
I think we can all agree that the popularity of F1 has fallen. I strongly believe that the cause is over regulation and a ridiculous attempt to make F1 appear "green".
I would be interested to know whether the pro-V6 crowd have a different explanation ...
The over regulation argument I get, but how can you say that the decline over the last 6 years has been caused by 'green' regulations introduced just 2 races ago?