Less Wrong has a FAQ that anyone can edit. I think your first four Measures could be best addressed by getting an account on the Wiki and writing what you think we need.

Your worries about the structure of SIAI sound like the sort of thing worth talking about, but posting them on Less Wrong might not be the best way to go about them due to bystander effect and lots of important SIAI folk not being readers here. If you are really interested in this side of things, consider emailing someone on the organizational side of SIAI (Eliezer is not primarily organizational side and is usually busy; Michael Vassar might be good or at least know who to forward it to) and seeing what they have to say. Justin Shovelain also has a history of being good at explaining this side of things; he has a sequence that I think will get some of this across somewhere in the pipeline.