A “useful” help page for ModelStateDictionary.AddModelError()?

Just tried to use Microsoft’s online documentation for ModelStateDictionary.AddModelError(). The following picture is a screen shot as of 30 June 2010:

Yes, that’s all. This page could be generated by a piece of software (maybe it was?). There is no useful information in this beyond what I can derived from the method signature in the first place.

I wonder: What is the value of this page?

There was a time a few years ago when Microsoft MSDN documentation was orders of magnitudes better and even had some meaningful examples. Today, it appears that we are increasingly relying on the “community” to make up for the lack of sufficient document by the vendor. This is disappointing.