You're probably right, as far as the current impact of this site. There was a time when it provided insight into the thinking of the drivers/employees at the various centers. In fact, it still does, to some extent. Though, most no longer (and never did) participate in the public forums.
The truth is, many of the improvements came directly from the pages of truckingboards. If you were able to listen to the 1st couple of installments of the Corporate communications videos, you would recognize the topics and terms from discussions on this very forum. Even the Direct communications, via video format, were talked about here, and provided proof that somebody was listening. Coincidence, you might say? Contributing factor, most certainly.
Since we don't have a format/mechanism/outlet for direct communication back to Corporate, we use this forum, and perhaps make some small difference. We use the tools we have, not the ones we wish we had...