I agree there is too much redundancy in the UPM process. One message, public or private, with no response in 30 days, should be enough for the leaders to investigate when notified. In my case, I avoid private messages for public profiles. I want the discussion in the open. Anybody who's too sensitive to being notified of errors or conflicting facts, etc. should not be a PM. It's a wiki site - other people are supposed to have input.