Climb trad, or give thanks that someone donated the money and time to set up the route in the first place. A simple email to any of the route setters to notify them is sufficient. Insulting the route setters by claiming that people are going to get hurt on their routes gets nothing done besides spreading panic.
I for one am grateful for all the hard work, time, and finances donated to those that are developing Muir Valley.
Explain to me how an immediate public notification of a very clear and present danger is insulting. This is a public notification by Terry Kindred "route setter" and fixer of routes: If anyone anywhere at anytime finds a loose bolt on a Team Suck route feel free to tighten it if you are in possession of this basic skill, if not, find someone who is. If all that fails make a public statement. I, nor any of my fellow "route setters" will be insulted.