Some feedback thus far. My original suggestion:
a) Revising public comments. Personally, this would mostly be noting that a performance is live rather than studio, noting where a subsequent studio recording was released, deleting relic comments. noting that a performance is mostly instrumental (when technically considered vocal by site rules), etc.
b) Flagging performances as instrumentals when incorrectly coded as vocal.
c) Adding missing cover art.
d) Indexing performances to additional releases when both are already on site, e.g. when a performance is first released as a single but the related album or a compilation is already on site.
e) The ability to read (but not necessarily write on) editor discussion forums. There have been several instances when an editor has sent me a link to some thread that I could not access.
Powers that were added thus far:
a) Add missing information to artists: Identify as person or member, visual, birth date, death date, home country, and free biography details.
b) View editor notes for all database objects. These notes contain research-related information by the editors.
c) View attachments for all database objects. For example, in the case of releases you will often find the back cover scan.
d) View and post in the editor boards.
So far, the only new database object related power exercised is adding missing artist images and bios. I don't see why adding is any riskier than revising. At first I didn't have access to the birth date, etc. fields, tho I think some but not all are available now for populating.
Access to editors' notes and attachments has been helpful in better documenting errors and avoiding unnecessary error reports.
Access to the editor boards does allow one to see the proverbial sausage being made, rather than waiting for a status on suggestions, etc. posted on the public boards.
Not being able to revise/add performance comments remains an irritant. Live vs. studio and mostly instrumental are important notes for me, so I assume they would be to others. Nevertheless, such suggestions are not error report worthy.
Correcting vocal vs. instrumentals results in a relatively high number of error reports, which I'm sure irritates the editors. Ditto for missing cover art.
Multi-indexing also remains something of interest to me, yet I acknowledge that subjective discretion and different editor preferences play a strong role here. I have some ideas for this area and may post a related site suggestion.
In short, adding missing artist images/bios and avoiding some error reports are the only things that is relieving some editor burdens, and these are rather few.