If I am a university adminstrator I have no time to spend reading "message boards". Moreover, I do not see a lot of attention (or respect for that matter) given opinions posted by anonymous persons on these boards. To a great degree they carry about the same weight as the anonymous "pot shot" comments solicited at newspaper internet sites in connection with published articles and reports.
That's not to say that everyone who posts is anonymous and that's not to say that good ideas shared here aren't also communicated directly to the proper parties by certain posters.
Boards are certainly a great way to share what would otherwise be "local news" with a widespread group of interested parties. For better or worse they also say a lot about who we are as a group.