Board Thread:Support Requests - Designing Your Wikia/@comment-11842624-20150701192653/@comment-24757753-20150701202637

In the site CSS file, there are rules that set a fixed width for the user profile header under the section 'Дизайн профиля'.

Removing the 'width' rules under '.UserProfileMasthead' and '.UserProfileMasthead .masthead-info hgroup' should fix this for you.

Not sure about any other similar cases though, sorry.