I haven't noticed any advertising; could it be because I mainly log onto the forums only?
Another board I sometimes visit has advertisements within threads! As soon a poster posts a new topic an advertisement is inserted right below the original thread. And it stays there. Responses can be viewed after viewing the advertisement. Now that's what I call heavy advertising. Every time I go to the home page on that forum it is inundated with at least twenty adverts.
I don't see any of it here on the forums. And love it this way.