Why can't kvetch move to the Dashboard Welcome page after a WP core update (or as small unobtrusive link in the Dashboard on the footer...when clicked, activates a modal from WP.org)? You'd have the username, Website URL, a time stamp, WP version, etc. from the submission form. Then, you have actual user/developer feedback from active installs. On network installs, the feature can be present for subsite admins if the Super Admin OKs it in the General Network Settings. Of course, there would be issues regarding roles. Example, if a user is a subscriber, would they see that little link in the Dashboard area?