[quote=Aurus]
I remember when casual actually had casual length posts. If I could keep up with 1-2 pages every other post I'd play in the advanced section. Maybe my interests just happen to attract all the wordy people...
[/quote]

Not really.

It also has to do with the fact that Advanced grew into an elitist society, acting like those who weren't advanced were lesser beings cause of it.
A lot of people had issues with that and went to Casual creating "High Casual" as a result.

So it's just a matter of the non-elitist advanced players changing location.