User blog comment:Kirkburn/Technical Update: March 3, 2015/@comment-5558012-20150305044242/@comment-452-20150305171005

Ah, I know that one: File:Strange_gaps_when_editing_blog_comments.png (2013-05-01)

This CSS will fix it: .WikiaArticleComments .article-comm-form textarea { width: 100% !important; } But you should also send some words to Special:Contact, so staff will know it's a problem that effects people other than me so they can go ahead and fix it. Tell them to look at Tickets #113129 and #169761