User blog comment:Brandon Rhea/Making Ads Better: The Basics/@comment-5558012-20170117023913/@comment-20644-20170117200044

Thank you for telling that user how to report the ad. Ads like what you described are certainly not acceptable.

As for the main page column ad, we can't make it one size because it's the same ad unit as what you see on the wiki page. They are what's known as medrec ads. Some medrecs are square, and some are long and rectangular. The main page column tag serves as a means of making sure that the main page functions well regardless of what size medrec is being displayed, and that's something that a main page needs to be built around. We can't separate the main page medrec out from the wiki page medrec.