RG's mission is to annotate. The size, content-matter, and closeness to a violent event make Rodger's 'Twisted Life' a very challenging document for their system... which is exactly why I think they must host it.

It's widely available, and people are interested. Either RG-style annotation helps people come to terms with it, or not. But they have to try, to find out – and possibly improve their practices if they're found wanting.