If the concern is that curators are making wrong decisions about suspending users etc, then change the rules about how users are suspended, make it require 2 curators to agree or something.
If I accidentally upload the same observations twice, or realize i've accidentally clicked on the wrong item in doing an ID, what purpose is there in continuing to keep that, and not permitting it to be deleted ?
The examples I gave in the links on my records were some of the more polite ones that were posted on my observations, why should I have to continue having accusations of me breaking the law, lying about my records etc on the site ?
If content is flagged and the flag 'accepted' - get rid of it. I've flagged and curated porn images, even of children posted to the site, are you suggesting that should be retained on the server but hidden (yes that is the most extreme example, but equally valid).