The Ares updater may create unnecessary WebValidation entries.
The AresUpdate.sql script is using checks to determine if a web validation entry exists. The entries were necessary in the 4.6.0 major update but were not removed in the subsequent point releases.
As an example, if a site chose to not use the PasswordHint field they may have removed the validation. The update script will add the validation back in each 4.6.x update if the site had already removed the web validation entry.
Released in Ares 4.6.6
New WebValidation entries for a major release should not be inserted with each subsequent minor release.