Why Are My AdWords Ads Disapproved?

In a long overdue move, Google has finally added a ‘Reason for your ad being disapproved’ column:-

http://adwords.blogspot.co.uk/2012/08/an-easier-way-to-view-advertising.html

Google, can we please have something similar in Google Merchant Center, along with someone who actually replies to help requests about why some items have been disapproved?

Thanks!