User blog comment:BertH/Layout and navigation updates coming October 3/@comment-1142365-20121004112053

I do not understand why the ad in the slideshow pic is claiming ad size to be "300x250".

This is not an ad with a size of 300x250. The size of that ad is so big it ruins the formatting of the main page. It's over twice the supposed height dimension of "250px".

Ads on Wikia never used to be this excessively big...