he mentioned regional forums, so I assume a large part of what is missing is a common culture/language instead of whatever conglomeration comes out of the US.
the EU regulations made it harder/less attractive to host a small local forum and I think that was his point
forocoches(dot)com
And I have more:
mediavida(dot)com ( it means half-life :) )
And then I have random ones:
redcafe(dot)net foro.acb(dot)com
I read them, and post on them daily, forums are alive and kicking it on europe :)